... pump out valve 抽空阀 ; 抽空阀【连接制冷系统与真空泵的阀 oil pump regulating valve 油泵调节阀 pump suction valve 泵吸入阀 ...
基于208个网页-相关网页
... evacuant 泻药 evacuation valve 抽空阀 evanohm 伊万欧姆镍铬电阻合金 ...
基于200个网页-相关网页
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pump out valve
pump-out valve
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evacuation valve
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