利勃海尔采用了可变液压操纵的设备作为A380飞机飞行操纵系统来驱动襟翼，这是这种理论第一次应用在航空领域。

For the A380's flight control systems, Liebherr has adopted equipment with variable hydraulic control to drive the wing flaps, the first time this principle has been used in aviation.

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液压放大器，是在液压传动和自动控制理论基础上，建立起来的一种液压控制系统。

The hydraulic amplifier is the hydraulic control system based on the theory of hydraulic drive and automatic control.

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采用塑性增量理论，建立了波纹管液压胀形的应力、应变数值计算方法，解决了波纹管液压胀形工艺的理论计算问题。

By plasticity increment theory, the stress strain numerical calculate methods of bellows bulge forming, solvers theory calculating problems of bellows bulge forming technology are put forward.

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The problem is Freud had a very sort of hydraulic theory of what goes on, and some of this stuff slips out and it shows up in dreams and it shows up in slips of the tongue.

问题在于,弗洛伊德用所谓的液压理论,解释了发生的事情，有些受到压抑的欲望,会通过梦境和口误而表现出来。

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