... 几何螺距角 geometric pitch angle 钢架墩 girder block 玻璃绵绝热材 glass wool heat insulating material ...
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短语
柔性钢架墩
Flexible steel pier
;
Flexible steel frame piers
;
soft steel structure Tun
钢骨架高桥墩
steel-reinforced concrete high bridge pier
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