 |
| |||
| inspection well; manhole | |||
| conduit pit | |||
| inspection shaft | |||
| well chamber (室) | |||
| |||
| inspection well | |||
| |||
| inspection shaft | |||
| 检 査 井: 23 phrases in 8 subjects |
| Agriculture | 1 |
| Architecture | 1 |
| Construction | 1 |
| Ecology | 2 |
| Electronics | 2 |
| Engineering geology | 1 |
| General | 1 |
| Technology | 14 |
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