operations and maintenance
| instruction
| operation and maintenance | |
| earth.sc. | 使用和维护 |
| econ. | 操作与维修 |
| el. | 运行和维护 |
| hydroel.st. | 运行与维护 |
| IMF. | 经营与维护 |
| textile | 使用与维护 |
| wind. | 运行与维修 |
| operation and. maintenance | |
| gen. | 使用 与维炉 |
| instruction | |
| gen. | 吩咐; 训令 |
| hydroel.st. | 说明书; 指令 |
| interntl.trade. | 指南 |
| manag. | 命令 |
| math. | 命令语 |
| sport. | 指示 |
|
operations and maintenance : 154 phrases in 27 subjects |
| Agriculture | 2 |
| Air defense | 2 |
| Automobiles | 1 |
| Aviation | 22 |
| Business | 3 |
| Commerce | 1 |
| Communications | 4 |
| Computer networks | 2 |
| Earth sciences | 4 |
| Economics | 7 |
| Electronics | 32 |
| Exhibitions | 1 |
| Finances | 1 |
| General | 1 |
| Hydroelectric power stations | 5 |
| Information technology | 8 |
| International trade | 1 |
| Management | 1 |
| Project management | 6 |
| Rail transport | 3 |
| Scientific | 1 |
| Shipbuilding | 1 |
| Space | 9 |
| Technology | 14 |
| Telecommunications | 19 |
| Water resources | 2 |
| Wind Energy | 1 |