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GB standards are the China national standards; Prefix code GB are Mandatory standards, GB/T are Recommended standards; All products or service must be compliance with GB standards; If you want to export products or services to huge Chinese market, need ensure they are meet the requirements of GB china national standards; We provide Chinese GB standards and English version GB standards Lookup, Translate, Download, Imported Commodity GB standards Testing and Compliance review services. |
| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| GB/T 34893-2017 |
Micro-electromechanical system technology—Measuring method for in-plane length measurements of MEMS microstructures using an optical interferometer 微机电系统（MEMS）技术 基于光学干涉的MEMS微结构面内长度测量方法 |
China National Standards Measuring |
 English PDF |
| GB/T 16857.5-2017 |
Geometrical product specifications(GPS)—Acceptance and reverification tests for coordinate Measuring machines (CMM)—Part 5:CMMs using single or multiple stylus contacting probing systems 产品几何技术规范(GPS) 坐标测量机的验收检测和复检检测 第5部分：使用单探针或多探针接触式探测系统的坐标测量机 |
China National Standards Measuring |
English PDF |
| GB/T 34899-2017 |
Micro-electromechanical system technology—Measuring method of microstructure surface stress based on Raman spectroscopy 微机电系统（MEMS）技术 基于拉曼光谱法的微结构表面应力测试方法 |
China National Standards Measuring |
English PDF |
| GB/T 34837-2017 |
Classification, terminology and numbering for parts and assemblies of the time Measuring instruments—Quartz wrist watch movements 计时仪器零部件分类、名称和编号 石英手表机心 |
China National Standards Measuring |
English PDF |
| GB/T 14598.27-2017 |
Measuring relays and protection equipment—Part 27：Product safety requirements 量度继电器和保护装置 第27部分：产品安全要求 |
China National Standards Measuring |
English PDF |
| GB/T 18800-2017 |
Household microwave oven—Methods for Measuring performance 家用微波炉 性能试验方法 |
China National Standards Measuring |
English PDF |
| GB/T 34481-2017 |
Test method for Measuring etch pit density (EPD) in low dislocation density monocrystalline germanium slices 低位错密度锗单晶片腐蚀坑密度(EPD)的测量方法 |
China National Standards Measuring |
English PDF |
| GB/T 34454-2017 |
Dry cleaning robots for household use—Methods of Measuring performance 家用干式清洁机器人 性能测试方法 |
China National Standards Measuring |
English PDF |
| GB/T 34634-2017 |
Geometrical product specifications (GPS)—Measurement of linear sizes (500 mm-10000 mm) of plain workpiece—Choice of Measuring instrument 产品几何技术规范(GPS) 光滑工件尺寸(500mm～10000mm)测量 计量器具选择 |
China National Standards Measuring |
English PDF |
| GB/T 7676.1-2017 |
Direct acting indicating analogue electrical Measuring Instruments and their accessories—Part 1：Definitions and general requirements common to all parts 直接作用模拟指示电测量仪表及其附件 第1部分：定义和通用要求 |
China National Standards Measuring |
English PDF |
| GB/T 7676.3-2017 |
Direct acting indicating analogue electrical Measuring instruments and their accessories—Part 3：Special requirements for wattmeters and varmeters 直接作用模拟指示电测量仪表及其附件 第3部分：功率表和无功功率表的特殊要求 |
China National Standards Measuring |
English PDF |
| GB/T 7676.2-2017 |
Direct acting indicating analogue electrical Measuring instruments and their accessories—Part 2：Special requirements for ammeters and voltmeters 直接作用模拟指示电测量仪表及其附件 第2部分：电流表和电压表的特殊要求 |
China National Standards Measuring |
English PDF |
| GB/T 7676.6-2017 |
Direct acting indicating analogue electrical Measuring instruments and their accessories—Part 6：Special requirements for ohmmeters(impedance meters ) and conductance meters 直接作用模拟指示电测量仪表及其附件 第6部分：电阻表（阻抗表）和电导表的特殊要求 |
China National Standards Measuring |
English PDF |
| GB/T 7676.5-2017 |
Direct acting indicating analogue electrical Measuring instruments and their accessories—Part 5：Special requirements for phase meters, power factor meters and synchroscopes 直接作用模拟指示电测量仪表及其附件 第5部分：相位表、功率因数表和同步指示器的特殊要求 |
China National Standards Measuring |
English PDF |
| GB/T 7676.8-2017 |
Direct acting indicating analogue electrical Measuring instruments and their accessories—Part 8：Special requirements for accessories 直接作用模拟指示电测量仪表及其附件 第8部分：附件的特殊要求 |
China National Standards Measuring |
English PDF |
| GB/T 7676.9-2017 |
Direct acting indicating analogue electrical Measuring instruments and their accessories—Part 9：Recommended test methods 直接作用模拟指示电测量仪表及其附件 第9部分：推荐的试验方法 |
China National Standards Measuring |
English PDF |
| GB/T 7676.4-2017 |
Direct acting indicating analogue electrical Measuring instruments and their accessories—Part 4：Special requirements for frequency meters 直接作用模拟指示电测量仪表及其附件 第4部分：频率表的特殊要求 |
China National Standards Measuring |
English PDF |
| GB/T 7676.7-2017 |
Direct acting indicating analogue electrical Measuring instruments and their accessories—Part 7：Special requirements for multi-function instruments 直接作用模拟指示电测量仪表及其附件 第7部分：多功能仪表的特殊要求 |
China National Standards Measuring |
English PDF |
| GB/T 34070-2017 |
Standard of electrical Measuring transmitters for internet of things 物联网电流变送器规范 |
China National Standards Measuring |
English PDF |
| GB/T 34075-2017 |
Measuring methods of optical radiation safety for LED general lighting service 普通照明用LED产品光辐射安全测量方法 |
China National Standards Measuring |
English PDF |
| GB/T 14598.24-2017 |
Measuring relays and protection equipment—Part 24: Common format for transient data exchange (COMTRADE) for power systems 量度继电器和保护装置 第24部分：电力系统暂态数据交换(COMTRADE)通用格式 |
China National Standards Measuring |
English PDF |
| GB/T 14598.121-2017 |
Measuring relays and protection equipment—Part 121：Functional requirements for distance protection 量度继电器和保护装置 第121部分：距离保护功能要求 |
China National Standards Measuring |
English PDF |
| GB/T 34050-2017 |
Intelligent temperature Measuring instruments—General technical requirements 智能温度仪表 通用技术条件 |
China National Standards Measuring |
English PDF |
| GB/T 12649-2017 |
Measuring methods for meteorological radar parameters 气象雷达参数测试方法 |
China National Standards Measuring |
English PDF |
| GB/T 33888-2017 |
Non-destructive testing instruments—Characterization and verification of ultrasonic thickness Measuring equipment 无损检测仪器 超声测厚仪特性与验证 |
China National Standards Measuring |
English PDF |
| GB/T 33876-2017 |
Method for Measuring gloss uniformity of image on colour copied pages 彩色复印品图像光泽均匀性的检验方法 |
China National Standards Measuring |
English PDF |
| GB/T 6113.201-2017 |
Specification for radio disturbance and immunity Measuring apparatus and methods—Part 2-1: Methods of measurement of disturbances and immunity—Conducted disturbance measurements 无线电骚扰和抗扰度测量设备和测量方法规范 第2-1 部分：无线电骚扰和抗扰度测量方法 传导骚扰测量 |
China National Standards Measuring |
English PDF |
| GB/T 519-2017 |
Test methods for Measuring physical properties of pneumatic tyres 充气轮胎物理性能试验方法 |
China National Standards Measuring |
English PDF |
| GB/T 33656-2017 |
Drawing method of energy Measuring network diagram for enterprises 企业能源计量网络图绘制方法 |
China National Standards Measuring |
English PDF |
| GB/T 15187-2017 |
Measuring method for performances of wet dust collectors 湿式除尘器性能测定方法 |
China National Standards Measuring |
English PDF |
| GB/T 33523.6-2017 |
Geometrical product Specifications (GPS)—Surface texture: Areal—Part 6: Classification of methods for Measuring surface texture 产品几何技术规范(GPS) 表面结构 区域法 第6部分：表面结构测量方法的分类 |
China National Standards Measuring |
English PDF |
| GB/T 50063-2017 |
Code for design of electrical Measuring device of power system 电力装置电测量仪表装置设计规范 |
China National Standards Measuring |
English PDF |
| GB/T 35679-2017 |
Measuring method for electromagnetic parameters of solid materials at microwave frequencies using waveguide 固体材料微波频段使用波导装置的电磁参数测量方法 |
China National Standards Measuring |
English PDF |
| GB/T 35583-2017 |
Method of Measuring abrasion resistance of images on copied pages 复印品图像抗磨损性的测试方法 |
China National Standards Measuring |
English PDF |
| GB/T 35680-2017 |
Measuring method for electromagnetic parameters of liquid materials at microwave frequencies using an open-ended coaxial probe 液体材料微波频段使用开口同轴探头的电磁参数测量方法 |
China National Standards Measuring |
English PDF |
| GB/T 14598.23-2017 |
Electrical relays—Part 21: Vibration, shock, bump and seismic tests on Measuring relays and protection equipment—Section 3: Seismic tests 电气继电器 第21部分：量度继电器和保护装置的振动、冲击、碰撞和地震试验 第3篇：地震试验 |
China National Standards Measuring |
English PDF |
| GB/T 35461-2017 |
Specification for equipping and managing of the Measuring instrument of energy in the cement production enterprise 水泥生产企业能源计量器具配备和管理要求 |
China National Standards Measuring |
English PDF |
| GB/T 35163-2017 |
Method for Measuring relative wet grip performance of truck and bus tyres 载重汽车轮胎湿路面相对抓着性能试验方法 |
China National Standards Measuring |
English PDF |
| GB/T 21910-2017 |
Method for Measuring relative wet grip performance of passenger car tyres 轿车轮胎湿路面相对抓着性能试验方法 |
China National Standards Measuring |
English PDF |
| GB/T 35186-2017 |
Performance evaluation of Measuring system for natural gas 天然气计量系统性能评价 |
China National Standards Measuring |
English PDF |
| GB/T 33580-2017 |
Testing and Measuring methods of energy consumption for rubber and plastics extruder 橡胶塑料挤出机能耗检测方法 |
China National Standards Measuring |
English PDF |
| GB/T 33370-2016 |
The Measuring method for copper and copper alloys soften temperature 铜及铜合金软化温度的测定方法 |
China National Standards Measuring |
English PDF |
| GB/T 22181.24-2016 |
Plasma display panels—Part 2-4: Methods for Measuring the characteristics of devices for digital television sets 等离子体显示器件 第2-4部分：数字电视机用器件特性测量方法 |
China National Standards Measuring |
English PDF |
| GB/T 32910.3-2016 |
Data center—Resource utilization—Part 3: Electric energy usage effectiveness requirements and Measuring methods 数据中心 资源利用 第3部分：电能能效要求和测量方法 |
China National Standards Measuring |
English PDF |
| GB/T 19389-2016 |
Test method of Measuring rolling circumference for truck tyres 载重汽车轮胎滚动周长试验方法 |
China National Standards Measuring |
English PDF |
| GB/T 32706-2016 |
Safety requirements for laboratory instruments and equipment—Noise Measuring instruments 实验室仪器和设备安全规范 噪声测量仪器 |
China National Standards Measuring |
English PDF |
| GB/T 6113.203-2016 |
Specification for radio disturbance and immunity Measuring apparatus and methods—Part 2-3: Methods of measurement of disturbances and immunity—Radiated disturbance measurements 无线电骚扰和抗扰度测量设备和测量方法规范 第2-3 部分：无线电骚扰和抗扰度测量方法 辐射骚扰测量 |
China National Standards Measuring |
English PDF |
| GB/T 6113.104-2016 |
Specification for radio disturbance and immunity Measuring apparatus and methods—Part 1-4: Radio disturbance and immunity measuring apparatus—Antennas and test sites for radiated disturbance measurements 无线电骚扰和抗扰度测量设备和测量方法规范 第1-4部分: 无线电骚扰和抗扰度测量设备 辐射骚扰测量用天线和试验场地 |
China National Standards Measuring |
English PDF |
| GB/T 6113.101-2016 |
Specification for radio disturbance and immunity Measuring apparatus and methods—Part 1-1: Radio disturbance and immunity measuring apparatus—Measuring apparatus 无线电骚扰和抗扰度测量设备和测量方法规范 第1-1部分：无线电骚扰和抗扰度测量设备 测量设备 |
China National Standards Measuring |
English PDF |
| GB/T 32651-2016 |
Test method for Measuring trace elements in photovoltaic-grade silicon by high-mass resolution glow discharge mass spectrometry 采用高质量分辨率辉光放电质谱法测量太阳能级硅中痕量元素的测试方法 |
China National Standards Measuring |
English PDF |
| GB/T 32562-2016 |
Rolling bearings—Measuring methods for friction torque 滚动轴承 摩擦力矩测量方法 |
China National Standards Measuring |
English PDF |
| GB/T 32561.3-2016 |
Measuring method for chalcogenide infrared optical glass—Part 3: Impurity 红外光学硫系玻璃测试方法 第3部分：杂质 |
China National Standards Measuring |
English PDF |
| GB/T 32561.2-2016 |
Measuring method for chalcogenide infrared optical glass—Part 2: Degree of striae 红外光学硫系玻璃测试方法 第2部分：条纹度 |
China National Standards Measuring |
English PDF |
| GB/T 32561.1-2016 |
Measuring method for chalcogenide infrared optical glass—Part 1: Homogeneity 红外光学硫系玻璃测试方法 第1部分：均匀性 |
China National Standards Measuring |
English PDF |
| GB/T 32525-2016 |
General specification for photoelectric tracking and Measuring equipment 光电跟踪测量设备通用规范 |
China National Standards Measuring |
English PDF |
| GB/T 32514.5-2016 |
Resistance welding—Welding current measurement for resistance welding—Part 5: Verification of welding current Measuring system 电阻焊 焊接电流的测量 第5部分：焊接电流测量系统的确认 |
China National Standards Measuring |
English PDF |
| GB/T 32478-2016 |
Household and similar electrical appliances method of Measuring performance —Assessment of repeatability and reproducibility 家用和类似用途电器性能测试方法 重复性和再现性评价 |
China National Standards Measuring |
English PDF |
| GB/T 20290-2016 |
Electric dishwashers for household use—Methods for Measuring the performance 家用电动洗碗机 性能测试方法 |
China National Standards Measuring |
English PDF |
| GB/T 14598.149-2016 |
Measuring relays and protection equipment—Part 149: Functional requirements for thermal electrical relays 量度继电器和保护装置 第149部分：电热继电器功能要求 |
China National Standards Measuring |
English PDF |
| GB/T 32371.4-2015 |
Short term method for Measuring the emission properties of low-solvent or solvent-free adhesives after application—Part 4: Determination of volatile diisocyanates 低溶剂型或无溶剂型胶粘剂涂敷后释放特性的短期测量方法 第4部分：挥发性二异氰酸酯的测定 |
China National Standards Measuring |
English PDF |
| GB/T 32371.3-2015 |
Short term method for Measuring the emission prorerties of low-solvent or solvent-free adhesives after application—Part 3: Determination of volatile aldehydes 低溶剂型或无溶剂型胶粘剂涂敷后释放特性的短期测量方法 第3部分：挥发性醛类化合物的测定 |
China National Standards Measuring |
English PDF |
| GB/T 32371.2-2015 |
Short term method for Measuring the emission prorerties of low-solvent or solvent-free adhesives after application—Part 2: Determination of volatile organic compound 低溶剂型或无溶剂型胶粘剂涂敷后释放特性的短期测量方法 第2部分：挥发性有机化合物的测定 |
China National Standards Measuring |
English PDF |
| GB/T 32371.1-2015 |
Short term method for Measuring the emission prorerties of low-solvent or solvent-free adhesives after application—Part 1: General procedure 低溶剂型或无溶剂型胶粘剂涂敷后释放特性的短期测量方法 第1部分：通则 |
China National Standards Measuring |
English PDF |
| GB/T 13824-2015 |
Mechanical vibration of rotating and reciprocating machinery—Requirements for instruments for Measuring vibration severity 旋转与往复式机器的机械振动 对振动烈度测量仪的要求 |
China National Standards Measuring |
English PDF |
| GB/T 32333-2015 |
Rolling bearings—Measuring methods and specifications for vibration (acceleration) 滚动轴承 振动（加速度）测量方法及技术条件 |
China National Standards Measuring |
English PDF |
| GB/T 32323-2015 |
Rolling bearings—Measuring methods for axial internal clearance of four-point-contact ball bearings 滚动轴承 四点接触球轴承轴向游隙的测量方法 |
China National Standards Measuring |
English PDF |
| GB/T 32281-2015 |
Test method for Measuring oxygen, carbon, boron and phosphorus in solar silicon wafers and feedstock by secondary ion mass spectrometry 太阳能级硅片和硅料中氧、碳、硼和磷量的测定 二次离子质谱法 |
China National Standards Measuring |
English PDF |
| GB/T 24578-2015 |
Test method for Measuring surface metal contamination on silicon wafers by total reflection X-Ray fluorescence spectroscopy 硅片表面金属沾污的全反射X光荧光光谱测试方法 |
China National Standards Measuring |
English PDF |
| GB/T 20818.1-2015 |
Industrial-process measurement and control—Data structures and elements in process equipment catalogues—Part 1: Measuring equipment with analogue and digital output 工业过程测量和控制 过程设备目录中的数据结构和元素 第1部分：带模拟量和数字量输出的测量设备 |
China National Standards Measuring |
English PDF |
| GB/T 18216.9-2015 |
Electrical safety in low voltage distribution systems up to 1000 V a.c. and 1500 V d.c.—Equipment for testing, Measuring or monitoring of protective measures—Part 9: Equipment for insulation fault location in IT systems 交流1000V和直流1500V以下低压配电系统电气安全 防护措施的试验、测量或监控设备 第9部分：IT系统中的绝缘故障定位设备 |
China National Standards Measuring |
English PDF |
| GB/T 18216.8-2015 |
Electrical safty in low voltage distribution systems up to 1000V a.c and 1500V d.c—Equipment for testing, Measuring or monitoring of protective measures—Part 8: Insulation monitoring devices for IT systems 交流1000V和直流1500V以下低压配电系统电气安全 防护设施的试验、测量或监控设备 第8部份：IT系统中绝缘监控装置 |
China National Standards Measuring |
English PDF |
| GB/T 32073-2015 |
Non-destructive testing—Test method for Measuring residual stress using ultrasonic critical refracted longitudinal wave 无损检测 残余应力超声临界折射纵波检测方法 |
China National Standards Measuring |
English PDF |
| GB/T 31934-2015 |
The Measuring and calculation method for heat storage capacity of high radiative coating 高辐射覆层蓄热量的测定与计算方法 |
China National Standards Measuring |
English PDF |
| GB/T 31896-2015 |
Classification,terminology and numbering for parts and assemblies of the time Measuring instruments—Watch casings 计时仪器零部件分类、名称和编号 手表外观件 |
China National Standards Measuring |
English PDF |
| GB/T 14598.26-2015 |
Measuring relays and protection equipment—Part 26: Electromagnetic compatibility requirements 量度继电器和保护装置 第26部分：电磁兼容要求 |
China National Standards Measuring |
English PDF |
| GB/T 31854-2015 |
Test method for Measuring metallic impurities content in silicon materials used for photovoltaic applications by inductively coupled plasma mass spectrometry 光伏电池用硅材料中金属杂质含量的电感耦合等离子体质谱测量方法 |
China National Standards Measuring |
English PDF |
| GB/T 4739-2015 |
Test method for Measuring the colorimetry of ceramic pigment 日用陶瓷颜料色度测定方法 |
China National Standards Measuring |
English PDF |
| GB/T 15614-2015 |
Test method for Measuring the glossiness of ceramic pigment 日用陶瓷颜料光泽度测定方法 |
China National Standards Measuring |
English PDF |
| GB/T 31299-2014 |
Household electric thermal storage room heaters─Methods for Measuring performance 家用储热式室内加热器 性能测试方法 |
China National Standards Measuring |
English PDF |
| GB/T 20291.1-2014 |
Vacuum cleaners for household use—Part 1：Dry vacuumcleaners—Methods for Measuring the performance 家用真空吸尘器 第1部分：干式真空吸尘器 性能测试方法 |
China National Standards Measuring |
English PDF |
| GB/T 18603-2014 |
Technical requirements of Measuring systems for natural gas 天然气计量系统技术要求 |
China National Standards Measuring |
English PDF |
| GB/T 51050-2014 |
Technical code for energy Measuring and monitoring engineering in the iron and steel enterprises 钢铁企业能源计量和监测工程技术规范 |
China National Standards Measuring |
English PDF |
| GB/T 13163.4-2014 |
Radiation protection instrumentation―Radon and radon decay product Measuring instruments―Part 4: Equipment for the production of reference atmospheres containing radon isotopes and their decay products (STAR) 辐射防护仪器 氡及氡子体测量仪 第4部分：含氡同位素及其子体参考大气的产生设备（氡环境试验系统） |
China National Standards Measuring |
English PDF |
| GB/T 13163.3-2014 |
Radiation protection instrumentation―Radon and radon decay product Measuring instruments―Part 3: Specific requirements for radon decay product measuring instruments 辐射防护仪器 氡及氡子体测量仪 第3部分：氡子体测量仪的特殊要求 |
China National Standards Measuring |
English PDF |
| GB/T 30868-2014 |
Test method for Measuring micropipe density of monocrystalline silicon carbide wafers―Chemically etching 碳化硅单晶片微管密度的测定 化学腐蚀法 |
China National Standards Measuring |
English PDF |
| GB/T 30867-2014 |
Test method for Measuring thickness and total thickness variation of monocrystalline silicon carbide wafers 碳化硅单晶片厚度和总厚度变化测试方法 |
China National Standards Measuring |
English PDF |
| GB/T 30866-2014 |
Test method for Measuring diameter of monocrystalline silicon carbide wafers 碳化硅单晶片直径测试方法 |
China National Standards Measuring |
English PDF |
| GB/T 21154-2014 |
Earth-moving machinery―Methods of Measuring the masses of whole machines, their equipment and components 土方机械 整机及其工作装置和部件的质量测量方法 |
China National Standards Measuring |
English PDF |
| GB/T 30954-2014 |
Automatic system for hydrological data Measuring and forecasting―General equipment 水文自动测报系统 通用设备 |
China National Standards Measuring |
English PDF |
| GB/T 30793-2014 |
Measuring ratio of anatase to rutile in titanium dioxide pigments by X-ray diffraction X-射线衍射法测定二氧化钛颜料中锐钛型与金红石型比率 |
China National Standards Measuring |
English PDF |
| GB/T 30842-2014 |
Electromagnetic shielding effectiveness specification and Measuring method for high voltage testing enclosures 高压试验室电磁屏蔽效能要求与测量方法 |
China National Standards Measuring |
English PDF |
| GB/T 16927.4-2014 |
High voltage and high current test techniques―Part 4: Definitions and requirements for test currents and Measuring systems 高电压和大电流试验技术 第4部分：试验电流和测量系统的定义和要求 |
China National Standards Measuring |
English PDF |
| GB/T 30195-2013 |
Test method for Measuring impact performance of motor vehicle tyres 汽车轮胎耐撞击性能试验方法 |
China National Standards Measuring |
English PDF |
| GB/T 30194-2013 |
Test method for Measuring the rolling circumference of agricultural tyres 农业轮胎滚动周长测试方法 |
China National Standards Measuring |
English PDF |
| GB/T 11446.5-2013 |
Test method for Measuring trace metals in electronic grade water by atomic absorption spectrophotometry 电子级水中痕量金属的原子吸收分光光度测试方法 |
China National Standards Measuring |
English PDF |
| GB/T 11464-2013 |
Terminology for electronic Measuring instruments 电子测量仪器术语 |
China National Standards Measuring |
English PDF |
| GB/T 30243-2013 |
Measurement of fluid flow in closed conduits—Specifications for V-cone pressure differential flow Measuring device 封闭管道中流体流量的测量 V形内锥流量测量节流装置 |
China National Standards Measuring |
English PDF |
| GB/T 8628-2013 |
Textiles—Preparation, marking and Measuring of fabric specimens and garments in tests for determination of dimensional change 纺织品 测定尺寸变化的试验中织物试样和服装的准备、标记及测量 |
China National Standards Measuring |
English PDF |
| GB/T 30118-2013 |
Single crystal wafers for surface acoustic wave (SAW) device applications―Specifications and Measuring methods 声表面波（SAW）器件用单晶晶片规范与测量方法 |
China National Standards Measuring |
English PDF |
| GB/T 30110-2013 |
Measuring methods of parameters of HgCdTe epilayers used for space infrared detectors 空间红外探测器碲镉汞外延材料参数测试方法 |
China National Standards Measuring |
English PDF |
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