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          • 螺杆泵的工作原理

            螺杆泵是利用螺杆的回转来吸排液体的。图中标示三螺杆泵的剖视图。图中,中间螺杆为主动螺杆,由原动机带动回转,两边的螺杆为从动螺杆,遂主动螺杆作反向旋转。主动螺杆从…