 |
| |||
| 全微分 | |||
| total differential: 10 phrases in 8 subjects |
| Aviation | 1 |
| Electronics | 1 |
| Geology | 1 |
| Metallurgy | 1 |
| Mining | 1 |
| Oil processing plants | 1 |
| Refrigeration | 1 |
| Technology | 3 |
|
| |||
| 全微分 | |||
| total differential: 10 phrases in 8 subjects |
| Aviation | 1 |
| Electronics | 1 |
| Geology | 1 |
| Metallurgy | 1 |
| Mining | 1 |
| Oil processing plants | 1 |
| Refrigeration | 1 |
| Technology | 3 |