... 桁架弦杆 chord ; chord member of truss 底弦杆 bottomchord 拉弦杆 tension chord ...
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chord member of truss
桁架弦杆
以上为机器翻译结果，长、整句建议使用 人工翻译 。
The long span dome structure are mostly steel truss structure. The member of steel truss are almost round steel tube, and curve chord.
大跨度穹顶建筑物多采用钢桁架体系，钢桁架的杆件一般采用圆钢管，弦杆为曲线。
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