1.
Application of frequency-modulated speed control to air-cooled large-size JZJQH2500-224 Roots vacuum pumping system
变频调速在大型气冷罗茨真空泵JZJQH2500-224抽气系统中的应用
2.
Roots blower pump
罗茨增压泵，机械增压泵
3.
Helical Three Lobe Roots Pump Design and Rotor CAD Research;
螺旋式三叶罗茨泵设计与转子CAD研究
4.
Discussion on processing involute curved surface of 8-shaped rotor of roots pumps;
罗茨泵“8”字形转子渐开线曲面加工的探讨
5.
Generator/Vacuum Pump Remove/Install
发电机/真空泵拆卸/安装
6.
neon light tube vacuum pump
霓虹灯管真空抽气泵
7.
oil sealed rotary vacuum pump
油密封式旋转真空泵
8.
vacuum and fuel pump tester
真空及燃油泵测验器
9.
automatic Sprengel pump
自动斯普伦格尔真空泵
10.
exhauster high speed pressure regulator
真空泵高转速调压器
11.
water ejector pump
喷水抽气泵(一种机械真空泵)
12.
rotary oil pump
回转油真空泵，旋转式油泵
13.
water jet vacuum
水喷真空 -用喷射泵能达到的真空
14.
The vacuum takes off the angry aircrew including the vacuum takes off angry machine, vacuum pump and centrifugal pump.
真空脱气机组是包括真空脱气机、真空泵和离心泵。
15.
The vacuum system consists of vacuum pumps, vacuum pipelines, vacuum valves and vacuum measurers.
真空泵、空管道、空阀门和真空测量头组成了真空系统。
16.
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。
17.
Well, blow me down, if it isn't Jack Roberts; I've not seen you for years!
唷, 真没想到, 你不就是杰克·罗伯茨吗?久违了!
18.
High pressure air for homogenizing is supplied by Roots blower under homogenizing silo.
均化所用高压空气由库底罗茨风机提供。