forvacuum 前级真空; 预抽真空; 预真空..
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... formidiracgas费米气体 forvacuum预真空 forvacuumpump预真空泵 ...
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forvacuum vessel 预真空容器
forvacuum high-pressure sterilizer 预真空高压消毒器
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forevacuum
Two film plating Chambers are formed into a whole via a forvacuum pipeline, a butterfly valve, a high-vacuum three-way pipeline and a gate valve.
两个镀膜室通过预抽真空管道和蝶阀、高真空三通管道和闸板阀组成一个整体。
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