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Sound level measuring system with optical indication of measured intensity of sound level
Sound level measuring system with optical indication of measured intensity of sound level
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机译:带有光学指示的声级测量系统,可测量声级
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摘要
The measuring system has an indicator which is designed for the representation of only small sound level ranges. The indicator has two or more lights, which are illuminatable, depending on the measured sound level in different numbers.
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