pumpdown

常见例句

• Periodically the chamber will get cleaned and this again will change the pumpdown performance.
  如果你技術水平高的話，大把現金等你贏，買車買房不再難！趕快來注冊吧！
• 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
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