| |||
| 分裂铁芯 | |||
|
split core : 18 phrases in 7 subjects |
| Drilling | 1 |
| Electric machinery | 1 |
| Electronics | 1 |
| Engineering geology | 1 |
| Hydroelectric power stations | 1 |
| Metallurgy | 3 |
| Technology | 10 |
| |||
| 分裂铁芯 | |||
|
split core : 18 phrases in 7 subjects |
| Drilling | 1 |
| Electric machinery | 1 |
| Electronics | 1 |
| Engineering geology | 1 |
| Hydroelectric power stations | 1 |
| Metallurgy | 3 |
| Technology | 10 |