Nine air division stationed in Zhangzhou frontline airport, even if not set the arch, but also an invisible opponent feel the pressure.
空九师进驻漳州一线机场，即便盘弓不发，也让对手感到一种无形压力。
2
Generally speaking, the bridge structure incorporating the flexible arch principle in material mechanics can disperse every point of pressure to the cross-section equally.
通俗地讲，运用材料力学的弹性拱原理造桥，这种结构就可以将受力点的力分散到桥的每一个横截面上。
3
Through similar material simulation the horizontal and vertical stress of arch rock stratum in pressure equilibrium is observed.