| |||
| 先接通后离断接点; 合断 | |||
| 先合后开; 电路先接后离 | |||
| 先闭后开触点的 | |||
| 先闭合后断开 | |||
| 先接后断 | |||
| 先通后断 | |||
| 先闭后开 | |||
| |||
| 中断前完成; 先接后断; 先闭合后断开 | |||
|
make-before-break : 32 phrases in 9 subjects |
| Electronics | 5 |
| General | 3 |
| Mechanics | 1 |
| Metallurgy | 2 |
| Oil / petroleum | 1 |
| Power system protection | 2 |
| Space | 5 |
| Technology | 9 |
| Telecommunications | 4 |