|
control variable : 40 phrases in 15 subjects |
| Automated equipment | 12 |
| Automatic control | 4 |
| Automobiles | 1 |
| Aviation | 1 |
| Computer numerical control | 2 |
| Earth sciences | 1 |
| Electric traction | 1 |
| Electronics | 2 |
| General | 1 |
| Materials science | 1 |
| Measuring instruments | 5 |
| Medical appliances | 1 |
| Optics branch of physics | 1 |
| Technology | 4 |
| Transport | 3 |