The technology can reduce the volume of power supply equipment, improve its working efficiency and generate the great economic benefit.
变频技术的应用，极大地减小了装置的体积，提高了效率，产生了巨大的经济效益。
The regularity can be applied to optimize the design of screw pumps and improve its working efficiency.
利用此规律可对螺杆泵进行优化设计，提高其工作效率。
The regularity can be applied to optimize the design of screw pumps and improve its working efficiency.
利用此规律可对螺杆泵进行优化设计，提高其工作效率。
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