油螺 meaning in English

ivory shell
whelk

Oil injected screw air compressor for general use
一般用喷油螺杆空气压缩机
Vibration analysis of high pressure cylinder of air compressor
喷油与无油螺杆压缩机的性能分析
The motion of the two rotors with single - threaded , equal pitch trapezoidal profile was theoretically analyzed to eliminate the tooth interference
摘要本文针对无油螺杆式真空泵中一种常用的单头等螺距梯形级齿的螺杆转子型线，研究讨论了二转子级齿间的干涉问题。
General malfunction occured of screw air compressor lubricated by water in yinjin gas purification plant were listed , the reasons of malfunction were analyzed , and the solution was given
摘要列举了重庆天然气净化总厂引进分厂水润滑无油螺杆式压缩机在实际运行过程中出现的常见故降，分析了故障产生的原因，提出了具体的解决办法。
The paper discusses about the basic performance and the character of oil - jet screw air compressor and gives details about the main part and performance parameter of the lubricating oil system , lastly describes the common failures in the lubricating system and the treatment of the problems
摘要讨论了喷油螺杆空气压缩机油路系统的基本原理和性能特点，说明了主要零部件的作用，对油路系统使用中的问题和常见故障进行了论述并提出了相应对策。