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1、符合计量法、JIS、IEC2、有107dB宽的线线范围,在30—130dB的噪音声级之内,无须进行范围切换即可测定。3、可测定噪音声级,等价噪音声级,噪音声级最大值,单发噪音暴露声级,峰值声压量程。
2017/4/10 19:45:58tonesoft
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2017/4/10 17:51:59tonesoft
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