A small turbine engine in the airplane for supplying electrical and pneumatic power for systems operation on the ground or in flight.

辅助动力装置是飞机内的小涡轮发动机，在地面或空中给各系统提供电源和气源。

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To settle the problem, a self-gravity potential energy recovery and pneumatic power assisting device is designed.

基于此，设计了一款自重势能回收气动式助力装置。

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In addition, a number of control parameters are selected to study their impact on aerodynamic efficiency and pneumatic power.

此外，还选取若干个控制参数，研究其对气动效率和气动功率的影响。

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It would rely more on electricity to run its systems than existing planes, which used hydraulic and pneumatic power.

WSJ: Boeing Shows How Innovation Can Be Messy

The 787, the first jetliner made from a majority of lightweight carbon fiber composites, eliminates hot, heavy and hard-to-maintain pneumatic systems that power key parts of the jet.

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