油箱 yóuxiāng fuel tank Origin Definitions Defs Strokes Stroke Words Sentences Sents 副油箱 fùyóuxiāng auxiliary fuel tank An extra fuel tank carried on the outside of an aircraft to increase its flying range; it can be dropped if necessary.集油箱 jíyóuxiāng oil sump oil sump; a container or reservoir for collecting oil in a machine or engine