 |
| |||
| 星形-三角形的; Y-∆的 | |||
| Y-delta: 12 phrases in 6 subjects |
| Chemistry | 1 |
| Electricity | 1 |
| Electronics | 4 |
| Geophysics | 1 |
| Oil / petroleum | 1 |
| Technology | 4 |
|
| |||
| 星形-三角形的; Y-∆的 | |||
| Y-delta: 12 phrases in 6 subjects |
| Chemistry | 1 |
| Electricity | 1 |
| Electronics | 4 |
| Geophysics | 1 |
| Oil / petroleum | 1 |
| Technology | 4 |