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sound level meter calibration
声级计校准
对声级计的电声学性能指标进行确认的过程。校准方法应参照JJG 188《声级计检定规程》中规定的项目进行。
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environmental impact assessment technology guidelines
environmental impact evaluation for biomass direct-fired power generation
environmental impact evaluation for waste incineration power generation
environmental impact from fossil-fired power plant
environmental impact of coastal engineering
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