水压驱动系统既保持了油压传动传递动力大、效率高和元件体积小的优点，又兼有环保的积极作用。

Water hydraulic drive system has some advantages of oil hydraulic transmission such as large power, high efficiency and compact structure as well as the unique advantage of environment-protection.

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液压千斤顶(又名：油压千斤顶)利用帕斯卡定律制成的利用液体压强传动的机械，种类液压千斤顶很多。

Hydraulic jack (other name: the hydraulic jack) the use liquid intensity of pressure transmission machinery which makes using the Pascal's law, the type hydraulic jack are many.

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