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發(fā)布時間: 2012-9-13 19:31
正文摘要:水環(huán)式真空泵(簡稱水環(huán)泵)是一種粗真空泵,它所能獲得的極限壓力,對于單級泵為2.66~9.31kPa;對于雙級泵為0.133~0.665kPa。水環(huán)泵也可用作壓縮機,它屬于低壓的壓縮機,其壓力范圍為(1~2)×105Pa表壓力(在 ... |
:)好帖子,還免費。謝謝樓主 |
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