内燃机主轴瓦及连杆轴瓦技术条件: internal combustion engines-main and connecting rod bearings-specification
桨: 名词1.(划船用具) oar; paddle 短语和例子划得一手好桨 pull a good oar; 每人划一小时桨 , 然后休息一下。 each man had a paddle for an hour and then a rest. 这只船用六把桨划。 this boat pulls [rows] six oars.2.(螺旋桨) propeller
