基本解释[机] 方头螺栓；木螺栓英汉例句双语例句True or False: A lag screw and a hex head machine bolt of the same diameter will take the same size masonary anchor?是非题：拉力螺钉和相同直径的机用螺栓是否取自相同的砖石锚栓？lag bolt更多例句词组短语短语lag g bolt 短螺栓;方头螺栓lag bolt更多词组专业释义机械工程方头螺栓经济学短螺栓