| |||
| 电子继电器 | |||
| ★ 电子开关 | |||
| 电子接线器; 电子交换机 | |||
| |||
| 电子开关; 电子交换 | |||
|
electronic switch : 34 phrases in 13 subjects |
| Automobiles | 7 |
| Aviation | 3 |
| Electricity | 2 |
| Electronics | 4 |
| Geophysics | 3 |
| Hydroelectric power stations | 1 |
| Oil / petroleum | 1 |
| Power electronics | 2 |
| Shipbuilding | 1 |
| Space | 2 |
| Technology | 6 |
| Telecommunications | 1 |
| Wind Energy | 1 |