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| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| GB/T 4854.3-1998 |
Acoustics--Reference zero for the calibration of audiometric equipment--Part 3:Reference equivalent threshold force levels for pure tones and bone vibrators 声学 校准测听设备的基准零级 第3部分:骨振器纯音基准等效阈力级 |
China National Standards 3:Reference |
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