maintainern.维修工maintainvt.维持；维修；保养；坚持；断言maintaining section养护单元Maintain and Retain维护保养maintain discipline维持纪律maintain reputation保持荣誉maintain man-hour维修工时maintaining voltage维持电压maintain management养护管理maintain an opinionvi.主张一种意见maintainable design可维修性设计maintain in contact保持联系