透析用水的保养和维护
The Maintenance of Hemodialysing Fluid
海军工程营维护保养队
naval construction battalion maintenance unit {= CBMU
维护保养
maintenance and care
Maintenance
preventive maintenance
daily maintenance
Daily Care and Maintenance
Maintaining
repairs and maintenances
Microscopes
维护保养预测
Preventive maintenance forecast
自动洗片机的维护保养
Maintenance of an automatic processor
材料保护保养
material protection and maintain
水资源的涵养和保护
Conservation and protection of water sources
保护维修
Protection and Maintenance
变频器的检查和维护
Check and Maintenance of Transducer