The main arch of "fly-bird-type" CFST arch bridge can be considered as fixed arch to calculate.
飞鸟式拱的钢管混凝土主拱可简化为固定拱计算。
"Is an animation about a Kiwi - a type of bird that cannot fly, who spends its whole life working towards achieving his dream."
是一部关于奇异鸟的动画短片——这种鸟不会飞，但他们一辈子都想要实现飞的梦。
"Is an animation about a Kiwi - a type of bird that cannot fly, who spends its whole life working towards achieving his dream."
是一部关于奇异鸟的动画短片——这种鸟不会飞，但他们一辈子都想要实现飞的梦。
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