... 真空压力表：vacuum manometer 真空旋转泵：vacuum backing pump 真空限制器：vacuum limiter ...
基于44个网页-相关网页
短语
旋转真空泵
rotary vacuum pump
;
Rotary pump
油密封式旋转真空泵
oil sealed rotary vacuum pump
旋转真空干燥泵
rotary dry vacuum pump
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vacuum backing pump
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vacuum backing pump
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