| |||
| push-push operation; push-push | |||
|
push-push : 26 phrases in 10 subjects |
| Communications | 4 |
| Data processing | 1 |
| Earth sciences | 1 |
| Electronics | 10 |
| Information technology | 1 |
| Internet | 1 |
| Mechanic engineering | 2 |
| Microsoft | 3 |
| Transport | 1 |
| Vacuum tubes | 2 |
| |||
| push-push operation; push-push | |||
|
push-push : 26 phrases in 10 subjects |
| Communications | 4 |
| Data processing | 1 |
| Earth sciences | 1 |
| Electronics | 10 |
| Information technology | 1 |
| Internet | 1 |
| Mechanic engineering | 2 |
| Microsoft | 3 |
| Transport | 1 |
| Vacuum tubes | 2 |