maintenance access
| function
| maintenance access abbr. | |
| oil | 维修通道 |
| function abbr. | |
| gen. | 运行; 工作 |
| hydroel.st. | 作用 |
| interntl.trade. | 效用; 职能 |
| light. | 功能，用途 |
| math. | 运算 |
| met. | 功用; 用途 |
| |||
| 维修通道 | |||
|
maintenance access : 14 phrases in 5 subjects |
| Aviation | 7 |
| Electronics | 4 |
| Nautical | 1 |
| Space | 1 |
| Technology | 1 |