基本解释[机械工程]埋头词组短语短语Counter -sunk head 埋头;静心counter sunk head rivet 埋头铆钉counter sunk head bolt 埋头螺栓counter sunk ovel head rievt 埋头凸顶铆钉counter sunk oval head rivet 埋头凸顶铆钉counter sunk head更多词组专业释义机械工程埋头