曲轴旋转 meaning in Chinese

crankshaft rotation

There is only one working stroke in four so a flywheel is needed to drive the crankshaft during the time that the engine is performing the non - power strokes
因为4个工作冲程中只有一个冲程作功，所以发动机处于非作功冲程时，飞轮带动曲轴旋转。
During the process of measuring valve phase , the grating displacement sensor and photoelectric axis - angle encoder are applied to measure the displacement of valve and the angle of curving shaft respectively . their signals are sampled and imported into computer . then the three signals are compared to find the relationship of valve phases in order to offer the reliable measuring parameters for the researchers and quality controllers
在气门相位测量中，采用光栅位移传感器和光电轴角编码器，分别将发动机进、排气门位移量和曲轴旋转位移量的变化信号通过采样，输入计算机，对三路信号加以比较找出气门的相位关系，从而为设计开发人员、品质控制人员提供可靠的测量参数。