罗茨真空泵的转子型线有很多种。
There are many kinds of rotor profiles for roots vacuum pump.
利用计算机辅助设计罗茨真空泵转子型线。
By the use of the computer auxilliary design, the rotor's cycloids of Roots (Rhodes) vacuum pumps are designed.
LS型直排大气湿式罗茨真空泵属粗真空获得设备。
LS series wet roots vacuum pump is a rough vacuum pumping equipment.
本文介绍了旁通阀罗茨真空泵的结构特征、在使用中的作用。
In this paper, the structure feature of the Roots vacuum pump with by-way valve and its function in action are introduced.
文章分析了影响提高罗茨真空泵最大允许压差因素，提出了解决方法。
In this article, the factors that affect the max. permissible differential pressure of Roots vacuum pump are discussed. The methods of increasing it are discussed together.
本实用新型公开一种对造纸、化工、陶瓷、卷烟等行业所用的罗茨真空泵。
The utility model discloses an automatic controlling protective valve of a Roots vacuum pump used in the industries, such as paper making, chemical industry, ceramic, cigarette, etc.
采用基于分布源边界点法的近场声全息技术对运转状态下的罗茨真空泵进行了噪声源识别和定位研究。
The distributed source boundary point method(DSBPM) based nearfield acoustic holography(NAH) is used for identifying and localizing noise sources of the roots vacuum pump.
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。
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.
真空系统采用两台真空泵和一台罗茨泵来实现真空。
The vacuum system utilizes two vacuum pumps and one booster pump to achieve a vacuum.
本机组采用罗茨泵作为主泵，以旋片式真空泵作为前级泵。
The set takes Roots pump as its main pump and spinning vacuum pump as pre-stage pump.
罗茨式真空泵，罗茨螺杆机组，罗茨旋片机组，罗茨水环机组，罗茨滑阀机组，移动式真空机组等。
Roots Vacuum Pumps, Roots and Vane Systems, Roots and Water-ring Systems, Roots and Piston Systems, Moves Freely Vacuum Systems and so on.
罗茨式真空泵，罗茨螺杆机组，罗茨旋片机组，罗茨水环机组，罗茨滑阀机组，移动式真空机组等。
Roots Vacuum Pumps, Roots and Vane Systems, Roots and Water-ring Systems, Roots and Piston Systems, Moves Freely Vacuum Systems and so on.
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