screw efficiency

基本解释

Usually, the fullest efficiency of screw propeller is 75% with the rest energy lost in the way of whirlpool.
通常螺旋推进器最大效率为75％，其余的能量以漩涡的形式损失。
And in terms of the study way of the screw expander, efficiency analysis and experimental studies on the scroll expander are given in the thesis.
参考定容积膨胀比膨胀机性能（螺杆式膨胀机）的研究方法，对涡旋式膨胀机进行了效率分析和实验研究。
Screw pump wells in accordance with the characteristics of the various parts of movement and energy losses, the establishment of a screw pump system efficiency analysis model well.
按照螺杆泵井各个部门运动独特之处及能量丧失环境，建立了螺杆泵井系统效率分析模子。