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hook bolt
auto. 钩形地脚螺栓
chem. 螺栓
dril. 大钩锁销
hydroel.st. 钩头螺
mech.eng. 带钩 〔丁字头〕螺栓
met. 钩头螺栓
railw. 钩螺栓
tech. 地脚螺栓; 带钩螺栓; 钩头地脚螺栓; 弯钩螺栓
telecom. 丁字头螺栓
hook-bolt
nautic., tech. 堵漏螺丝杆
hook bolt
: 6 phrases in 2 subjects
Bridge construction2
Technology4