pumpdown

常见例句

Periodically the chamber will get cleaned and this again will change the pumpdown performance.
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Capture water vapor and cut pumpdown time by as much as 75% in high-vacuum systems;
在高真空系統中抽吸水汽，縮減抽空時間多達75%25；
Cryocondenses water vapor in vacuum systems, High-vacuum pumpdown time cut by 25% to 75%;
在高真空系統中抽吸水汽，縮減抽空時間多達75%25；
Keywords Dimethylheptyl methylphosphonate（P350）;Tiny decompressed column chromatography;Pumpdown elution;Uranium;
甲基膦酸二甲庚酯;減壓微色譜柱;抽空洗脫;鈾;
pumpdown time
抽真空時間