 |
| 步进电机: 77 phrases in 17 subjects |
| Air defense | 2 |
| Automobiles | 7 |
| Aviation | 1 |
| Business | 1 |
| Communications | 1 |
| Compressors | 2 |
| Electric machinery | 25 |
| Electric motors | 1 |
| Electronics | 3 |
| General | 1 |
| Mathematics | 1 |
| Metallurgy | 4 |
| Refrigeration | 1 |
| Shipbuilding | 1 |
| Space | 2 |
| Technology | 23 |
| Wind Energy | 1 |