技术与市场是建设成本确定与控制的双支柱。
Technology and market are the two supports of the construction cost calculation and control.
翅膀是支撑钢翼双支柱，并固定在去除附着在机身和机翼的客舱与四架螺栓容易。
The wings are braced by dual steel wing struts, and are bolted to the fuselage at the cabin frame with four bolts for easy wing attachment and removal.
前悬架：双联合支柱，线圈弹簧，充气减震器，防侧倾杆。
Front suspension: double-joint strut, coil springs, gas-filled dampers, anti-roll bar.
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