 |
| |||
| activity intervention | |||
| 活动调节: 8 phrases in 7 subjects |
| Business | 1 |
| Ecology | 1 |
| Economy | 1 |
| Metallurgy | 1 |
| Refrigeration | 1 |
| Shipbuilding | 1 |
| Technology | 2 |
|
| |||
| activity intervention | |||
| 活动调节: 8 phrases in 7 subjects |
| Business | 1 |
| Ecology | 1 |
| Economy | 1 |
| Metallurgy | 1 |
| Refrigeration | 1 |
| Shipbuilding | 1 |
| Technology | 2 |