曲杆;
Concrete arch bridge truss type combination with ordinary truss arch bridge the difference between a pillar top lever in bent and cross in proper position disconnect, form arch structure among, both sides for truss beam structure.
桁式组合拱桥与普通桁架拱桥的区别在于,上弦杆在墩顶和跨中的适当位置断开,形成中间拱结构,两边为桁架梁结构。
A Bent Lever Weight Limiter
曲臂杠杆摆动式重量限制器
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