它由两个喷气涡轮引擎提供动力，以驱动五个叶片的主旋翼，以及通过齿轮箱和连轴驱动在两边短翼上的一对螺旋桨。
It is powered by two jet-turbine engines which operate both the five-bladed main rotor and, through a gearbox and shafts, a pair of propellers on two short wings.
他补充道，还有，这种齿轮箱与已经在飞机上使用的由涡轮驱动的为飞机提供动力的小型齿轮箱采用了相同的钢材。
Moreover, he adds, the gearbox is made from the same kind of steel that is already used in the small gearboxes that take power from turbofans for aircraft systems.
本文对拖拉机动力输出齿轮箱的计算机辅助设计作了一系列研究。
This text made a series of research to Computer Aided Design of Gear box of the tractor power output.
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