 |
| |||
| maintenance and repair | |||
| 保养维修: 68 phrases in 21 subjects |
| Agriculture | 1 |
| Architecture | 2 |
| Aviation | 3 |
| Bridge construction | 3 |
| Business | 5 |
| Commerce | 1 |
| Compressors | 1 |
| Drilling | 3 |
| Earth sciences | 1 |
| Economy | 4 |
| Environment | 1 |
| Exhibitions | 1 |
| Fishery fishing industry | 1 |
| Management | 1 |
| Metallurgy | 1 |
| Nautical | 2 |
| Oil / petroleum | 6 |
| Space | 1 |
| Technology | 26 |
| Textile industry | 1 |
| Wind Energy | 3 |