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ChineseDry screw vacuum pump cavity without oil lubrication, can obtain clean vacuum
Dry screw vacuum pump cavity without oil lubrication can obtain clean vacuum; pump working cavity an...
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The time required for exhausting to the working vacuum
The media, temperature, and characteristics of exhausting gas(such as: whether the exhausting gas co...
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Vacuum system volume and out-gassing volume
The media, temperature, and characteristics of exhausting gas(such as: whether the exhausting gas co...
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