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| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| GB/T 17248.3-2018 |
Acoustics—Noise emitted by machinery and equipment—Determination of emission sound pressure levels at a work station and at other specified positions applying approximate environmental corrections 声学-机器和设备发射的噪声-采用近似环境修正测定工作位置和其他指定位置的发射声压级 |
China National Standards approximate |
 English PDF |
| GB/T 17983-2000 |
Classification and designation of approximate chip control zones for indexable inserts with chipbreakers 带断屑槽可转位刀片近似切屑控制区的分类和代号 |
China National Standards approximate |
English PDF |
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