单词：throw of piston
throw of piston的用法和样例：
例句
- By controlling the piston stroke and the resistance on flow Passage,the fluid lift height and the pump speed can be controlled,thereby ideal lifting effect can be achieved.通过控制活塞行程及泵内流道阻力，从而控制泵举升液柱的高度和泵的运行速度，取得理想的举升效果。
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