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| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| GB/T 20249-2006 |
Acoustics - Definitions and measurement methods for the transmitted fields of focusing ultrasonic transducers 声学 聚焦超声换能器发射场特性的定义与测量方法 |
China National Standards Acoustics Definitions measurement |
 English PDF |
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