noise emitted by machines and equipment 中文意思是什麼
noise emitted by machines and equipment
解釋
機器和設備的噪聲-
Measurement of airborne noise emitted by machines ; enveloping surface method ; machines and equipment for the manufacture of concrete blocks, slabs, pipes and prefabricated elements
機器排放的空氣傳播噪聲的測量.第62部分:包洛面法.混
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