screw of lifting bolt的意思|示意
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英 / /
吊装螺栓螺丝
screw of lifting bolt的网络常见释义
吊环螺钉 ... screw lifting support 螺旋杆式升降支架 screw of lifting bolt 吊环螺钉 lifting-line theory of screw propeller 螺旋桨升力线理论 ...