Therefore, how to further improve the performance of the screw machinery, especially reduce screw compressor operation consumption, was still the current development of the major issue.
因此，如何进一步改善螺杆机械的性能，特别是降低螺杆空压机的运行能耗，仍是当前研发的重大课题。
2
Screw pump features: the loss of small screw pump, good economic performance.
螺杆泵 特点为：螺杆泵损失小，经济性能好。
3
The purposes of fast pulling experiment of minitype screw anchor are to explore how the parameters of the screw anchor determine its performance.