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声级计校准
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声级计校准
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电声计量
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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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seabed surface sediment detection system
seabed survey in-situ
seabirds
seaborgium
seaborne launch
sea bottom heat flow measurement
sea bottom reverberation
sea cave
sea coast
sea compass
sea creatures characters
sea-crossing bridge
sea-crossing elevation transferring survey
sea-crossing engineering
sea cucumber
sea cucumber triterpene glycosides(saponins)
sea damage
Sea dike of the Netherlands
sea dike works
seadragon
sead rearing of Anthocidariscrassispina
sead rearing of Apostichopus japonicus
sead rearing of sea cucumber
sead rearing of sea urchin
sead rearing of Strongylocentrotus intermedius
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