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.
剪切变形的影响使得箱形梁的翼板中出现应力不均匀现象，尤其是悬臂箱形梁剪力滞现象。
The influence of shearing deformation causes the non-uniform stress in the wing plate of the box girder, especially the cantilever box girder.
介绍了五座城市立交桥或高架桥的钢筋混凝土连续箱梁翼板横向开裂的情况。
The cases of transverse cracking in the flange slabs of reinforced concrete continuous box girders of five urban flyovers or viaducts are introduced.
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