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fluke 945噪音计/声级计/分贝仪
测量环境噪音（A加权）：30至130 dB， 0.1 dB分辨率，精度±1.5 dB 测量机械噪音（C加权）：35至130 dB， 0.1 dB分辨率，精度±1.5 dB 频率响应范围：31.5 Hz到8 kHz
2017/4/12 3:49:08tonesoft
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2017/4/12 3:09:56tonesoft
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2017/4/12 3:08:45tonesoft
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2017/4/12 3:01:25tonesoft
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2017/4/12 2:19:01tonesoft
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2017/4/12 2:14:00tonesoft
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2017/4/12 1:53:08tonesoft
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2017/4/12 1:18:27tonesoft
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2017/4/11 23:39:42tonesoft
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2017/4/11 23:12:39tonesoft
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2017/4/11 22:55:14tonesoft
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2017/4/11 22:24:33tonesoft
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2017/4/11 22:10:52tonesoft
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2017/4/11 21:55:28tonesoft
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2017/4/11 21:42:31tonesoft
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2017/4/11 21:29:44tonesoft
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2017/4/11 21:24:21tonesoft
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2017/4/11 19:32:32tonesoft
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2017/4/11 19:15:29tonesoft
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2017/4/11 19:14:38tonesoft
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