Also the inducer's pre-circumrotation, pre-promotion of pressure and anti-cavitation ability were studied.
同时，针对螺旋诱导轮的特殊结构，深入分析了它的预旋和预增压作用，以及自身良好的抗汽蚀性。
A hydraulic turbine is the device which turns kinetic energy of water into circumrotation power energy, and makes dynamotor working, then transfer energy to other place.
水轮机是一种把水流的机械能转变为旋转机械能的动力机械，它一般是以水流为动力带动发电机工作，从而把能量远距离输送出去。
The circumrotation of roller in metal spinning forming is a important dynamic boundary condition. The speed of roller need to be determine in real time in the process of finite element analysis.
旋压成形中旋轮被动转动是一个重要的边界条件，在有限元分析中需要时实确定旋轮的转速。
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