This paper has an instructive meaning in the practice of hydraulic power system design of the crane truck.

文章对汽车起重机液压系统的设计与使用具有实际指导意义。

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The dynamic characteristics and the stability of power systems need to be carefully considered in power system design, planning, and its operation and control.

电力系统的系统设计、规划、运行和调度需要充分考虑系统的动态性能及其运行稳定性，即需要对其机电暂态过程进行仿真。

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One design that's making a splash is a toilet that uses solar panel to power the pot's electrochemical system (photo, top).

一款引起轰动的设计是用太阳能电池板为马桶的电气化学系统提供能源（参见上方照片）。

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Perhaps the most interesting part of this design is its dual-mode power system, which consists of the standard solar cell array as well as a nuclear power source, allowing the rover to operate continuously and in areas that go long periods without sunlight.

ENGADGET: Chinese engineers reveal nuclear-powered lunar rover

Lilliputian Systems also announced today that Nectar Mobile Power System has been awarded the prestigious Consumer Electronics Show (CES) Innovations Award for Design and Engineering in the Portable Power category.

ENGADGET: Lilliputian debuts Nectar Mobile Power, promises two weeks of battery life per cell

Though it is more a product of tradition than design, it has turned into an efficient system for consolidating the power of the pope and the Church's other elites, he says.

NPR: Arcane Process Encourages Papal Horse Trading