| |||
| push-pull operation; push-pull | |||
|
push-pull : 16 phrases in 8 subjects |
| Communications | 2 |
| Earth sciences | 1 |
| Electronics | 7 |
| Information technology | 1 |
| Mechanic engineering | 2 |
| Natural sciences | 1 |
| Transport | 1 |
| Vacuum tubes | 1 |
| |||
| push-pull operation; push-pull | |||
|
push-pull : 16 phrases in 8 subjects |
| Communications | 2 |
| Earth sciences | 1 |
| Electronics | 7 |
| Information technology | 1 |
| Mechanic engineering | 2 |
| Natural sciences | 1 |
| Transport | 1 |
| Vacuum tubes | 1 |