短語詞組短語propeller layout nut 推進(jìn)軸螺帽propeller lock nut 螺槳鎖帽;推進(jìn)器緊鎖螺帽;螺旋槳鎖緊螺母hongyan propeller shaft nut 紅巖傳動軸螺母nut of propeller shaft 螺旋槳軸螺母 返回 propeller nut