基本解释罐车；拖罐车（等于tank truck）英英字典柯林斯英英字典 a form of railway wagon carrying a tank for the transport of liquids tank wagon剑桥字典tank wagon柯林斯字典专业释义能源科学技术油罐车油槽车罐柜车交通运输工程牵引槽车罐车经济学铁路油槽车