基本解釋[機] 方頭螺栓,馬車螺栓詞組短語短語coach h bolt 方頭螺栓coach bolt更多詞組英英字典柯林斯英英字典 a large round-headed bolt used esp to secure wood to masonry (Also called (chiefly US and Canadian) carriage bolt)coach bolt劍橋字典coach bolt柯林斯字典專業(yè)釋義機械工程方頭螺栓