基本解释雙頭螺栓英汉例句雙語例句Double-screw bolt & Iron plug with screw thread & Plastic cap.雙頭螺釘、螺紋塞和塑料蓋冒。double-screw bolt更多例句词组短语短語Dual -head double-screw bolt 雙頭螺柱double-screw bolt更多词组专业释义交通運輸工程雙頭螺栓