 |
| |||
| 可变方法 | |||
| variables method: 63 phrases in 16 subjects |
| Air defense | 2 |
| Aviation | 3 |
| Business | 9 |
| Chemistry | 1 |
| Construction | 1 |
| Earth sciences | 3 |
| Ecology | 1 |
| Economy | 1 |
| Electronics | 3 |
| Information technology | 3 |
| Mining | 1 |
| Oil / petroleum | 3 |
| Polymers | 1 |
| Rail transport | 1 |
| Space | 2 |
| Technology | 28 |