| 1. | The vacuum pumps begin sucking the air from the barrel of gun .
真空泵开始抽取电子枪管里的空气。 |
| 2. | The sludge is passed under a vacuum pump and allows the water to pass through a discharge or recirculation drain .
用真空泵除去污泥的固体含量而该泥水则经排水渠或回流渠排出。 |
| 3. | A vacuum pump pulled the products of combustion through the pipe and exhausted them outside at the end of the run .
一真空泵把燃烧的产物推进管子，在管道行程的末端将其释放掉。 |
| 4. | Uncontaminated water is normally used as seal water for vacuum pumps and for compressor cooling as well as for sanitary use .
未污染的水通常用作真空泵的密封水和压缩机的冷却水以及供保健用。 |
| 5. | A vacuum pump pulled the products of combustion through the pipe and exhausted them outside at the end of the run .
有一个真空泵把燃烧的产物推进管子，在管道行程的末端外面使这些产物彻底烧尽。 |
| 6. | Vacuum pumping and oil adding conveniently
可方便地对电力设备抽真空真空注油。 |
| 7. | Mechanical vacuum pumps of oil free and its application
无油机械真空泵及其应用 |
| 8. | Design and application of steam spraying vacuum pump
蒸汽喷射式真空泵的设计与应用 |
| 9. | Speedy calculation of critical speed of vacuum pump
真空泵临界转速的快速计算 |
| 10. | The vacuum pump quickly cools the firing chamber
使用真空泵可以使焙烧室迅速冷却。 |
