Cavitation will cause when pump circumrotate at high speed, and deteriorates the performance of water pump.
泵在高速旋转时容易产生空化现象，造成泵过流部件的汽蚀破坏，影响其工作性能的提高。
The image of time turns green. The songs of tender leaves and new leaves circumrotate along the annual ring: happy New Year.
岁月的意象渐渐绿了，嫩叶和新叶的歌，沿着年轮急速地旋转，新年快乐！
When fixing the electrical machine , worker should be careful of the order of wires. Make sure the circumrotate direction as same as mark.
电机维修时注意接线顺序，保证电机的实际旋转方向和标示方向一致。
Moreover this gradual contraction inlet may translate some pressure energy of liquid into kinetic energy and increase circumrotate speed. These play active actions on improving separation efficiency.
同时这种渐缩式入口方式，可将来液的一部分压能逐渐转化为动能，提高了旋流速度，对提高分离效率起到积极作用；
Moreover this gradual contraction inlet may translate some pressure energy of liquid into kinetic energy and increase circumrotate speed. These play active actions on improving separation efficiency.
同时这种渐缩式入口方式，可将来液的一部分压能逐渐转化为动能，提高了旋流速度，对提高分离效率起到积极作用；
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