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汽车液压 手摇轿车 车载 卧式千斤顶
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油压千斤顶是根据帕斯卡定律的原理工作的。他有油箱,大小不同的两个压力油缸,摇杠和关闭针阀等几个部分组成。工作时,提起小活塞将油吸入小压力油缸,当压下小活塞时将油压进大压力油缸。
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