The results show that availablepower and power input of water pump continuously decline with motor frequency reducing, and pump efficiency also decrease at the same time.
结果水泵有效功率和输入功率均随着电机频率的下降而不断降低，同时水泵效率也随着频率下降而降低。
2
Solid-state tube laser (SSTL) is one of available laser with high power output, for its high slop efficiency and electro-optical efficiency compared to the solid-state rod laser.
管状固体激光器可获得较高的斜效率及电光转换效率，因此是人们寻求可获得高输出功率的有效器件之一。
3
The separation of power machine and compressor gives a available way of improving calorific efficiency and performance per litre.