The hydraulic jack is one kind take the liquid as the actuating medium, makes according to the Pascal principle uses in the transmission energy realizing each craft machine.
液压千斤顶是一种以液体为工作介质，根据帕斯卡原理制成的用于传递能量以实现各种工艺的机器。
How to regard in the hydraulic actuation system to transmit the energy and the signal actuating medium?
如何看待液压传动系统中传递能量和信号的工作介质？
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