12377| 40
|
[求助] 请问凝汽器水封的原理,它如何影响真空?最好有图 |
发表于 2009-3-9 07:33:32
|
显示全部楼层
| ||
发表于 2009-5-29 17:58:52
|
显示全部楼层
| ||
小黑屋|手机版|Archiver|电力建设网站 ( 苏ICP备16030970号-1 )|网站地图
GMT+8, 2024-5-19 08:00 , Processed in 0.220019 second(s), 34 queries .
Powered by Discuz! X3.4 Licensed
© 2001-2023 Discuz! Team.