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。
In view of the drawbacks of the chain boiler fixed arch in operation, has been developed the moving arch.
针对链条炉排锅炉固定式炉拱结构在运行中存在的诸多缺陷，研制出活动炉拱。
In view of the drawbacks of the chain boiler fixed arch in operation, has been developed the moving arch.
针对链条炉排锅炉固定式炉拱结构在运行中存在的诸多缺陷，研制出活动炉拱。
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