短语词组短語propeller layout nut 推進軸螺帽propeller lock nut 螺槳鎖帽;推進器緊鎖螺帽;螺鏇槳鎖緊螺母hongyan propeller shaft nut 紅巖傳動軸螺母nut of propeller shaft 螺鏇槳軸螺母 返回 propeller nut