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Method for the evacuation of a low-vacuum chamber and of a HGH- vacuum chamber, as well as a high-vacuum apparatus for the practice thereof
Method for the evacuation of a low-vacuum chamber and of a HGH- vacuum chamber, as well as a high-vacuum apparatus for the practice thereof
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机译:抽空低真空室和高真空室的方法以及用于实践的高真空设备
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摘要
For the evacuation of a low-vacuum chamber (4) and of a high- vacuum chamber (5), two pump trains (6, 7) are provided, each consisting of a vacuum pump unit (8, 9) and a forepump unit (10, 11). The forepump unit (11) of the pump train (7) of the high-vacuum chamber (5) can draw selectively from the vacuum pump unit (9) of the high-vacuum chamber (5) or from a high-vacuum pump unit (12) connected likewise to the high- vacuum chamber (5). The vacuum pump unit (9) can aspirate either from the highvacuum chamber (5) or from the low-vacuum chamber (4) and discharge to the forepump unit (10) of pump train (6) or to the forepump unit (11) of pump train (7).
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