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.
在一层，东翼楼通向五间幼儿园教室，通过大厅进入，大厅用明亮的中庭和壁龛带来生气。
On the ground floor, the east wing leads to the five nursery school classrooms, accessible by a hall livened up with bright patios and alcoves.
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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