This type of operation allows for easy startup of hydraulic systems.

这种类型的操作允许对液压系统容易启动。

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Pressure control valves are used in hydraulic systems to control actuator force.

在液压系统中，压力控制阀用于控制油缸驱动力。

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Strong knowledge in mechanical principle, various mechanisms, pneumatic and hydraulic systems.

强的知识在机械原则，各种各样的机制，气动力学和液压机构。

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It also relies on electronic systems rather than hydraulic or mechanical systems to a greater degree than any other airliner.

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Large SUVs also could potentially be manufactured with hydraulic hybrid systems, he said.

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Since these boats have keels that are 3 meters or more deep to counterbalance the power of the sails, some owners opt for expensive hydraulic lifting systems to raise their keels and sneak into Caribbean anchorages.

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