拉杆

draw rod的用法和样例：

例句

The pull rod is screwed into the inside thread of the anchor head.将拉杆旋入锚头内的丝扣。
Large span double box-beam rod structure is born out of BSS.大跨度双箱梁钢棒拉杆组合钢结构即脱胎于张弦梁结构。

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