| |||
| ★ 主变压器 | |||
| |||
| 电源变压器; 主变压器 | |||
|
main transformer : 14 phrases in 5 subjects |
| Hydroelectric power stations | 9 |
| Hydrology | 1 |
| Nuclear and fusion power | 1 |
| Oil / petroleum | 1 |
| Technology | 2 |
| |||
| ★ 主变压器 | |||
| |||
| 电源变压器; 主变压器 | |||
|
main transformer : 14 phrases in 5 subjects |
| Hydroelectric power stations | 9 |
| Hydrology | 1 |
| Nuclear and fusion power | 1 |
| Oil / petroleum | 1 |
| Technology | 2 |