| 释义 |
1 ?中真空 ... Mean free path平均自由程 Medium vacuum中真空 Mega or million voltMV兆伏特 ... 2 ?中真空电子束焊 ... 中真空电子束焊: EBW-MVmedium vacuum 中真空电子束焊: medium vacuum 粗中真空制气油: MEDIUM VACUUM GAS OIL ... 3 ?中度真空 中度真空 ( medium vacuum ):气压从1torr-10-3torr 高真空(high vaccum):气压从10-3torr-10-7torr 4 ?中度真空 ...算： 真空度及气流型态: ? 粗略真空(Rough Vacuum)： 压力范围: 一大气压~ 1Torr 气流型态: 黏滞气流 ?中度真空(Medium Vacuum)： 压力范围: 1 ~ 10 -3 Torr 气流型态: 过渡气流 ? 高度真空(High Vacuum)： 压力范围: 10 -3 ~ 10 -7 Torr 气流型态: 分子气流...
- 1
In the low temperature, corrosive medium or vacuum conditions, with special performance should be considered the gasket. 在低温，腐蚀性介质或真空条件下，应考虑具有特殊性能的密封垫。 - 2
If the electron flow takes place in a vacuum, as in the case of electronic valve, the electrons will travel at considerable speed, since little resistance is offered the medium. 如果电子在真空里流动，比如电子真空管，那么电子的运行速度非常快，因为介质对电子几乎不产生什么阻力。 - 3
As the Roots pump is a non-vacuum inside the compression, the compression ratio is usually very low, so high, medium and vacuum pumps need to pump before. 由于罗茨泵是一种无内压缩的真空泵，通常压缩比很低，故高、中真空泵需要前级泵。
|