| |||
| 继电器切换 | |||
| |||
| 继电器磁力开关; 控制继电器 | |||
| 延时开关; 继电器开关 | |||
| |||
| 转播/转换 | |||
|
relay switching : 20 phrases in 8 subjects |
| Automobiles | 2 |
| Aviation | 1 |
| Electronic commerce | 2 |
| Electronics | 7 |
| Information technology | 1 |
| Shipbuilding | 1 |
| Space | 1 |
| Technology | 5 |
| |||
| 继电器切换 | |||
| |||
| 继电器磁力开关; 控制继电器 | |||
| 延时开关; 继电器开关 | |||
| |||
| 转播/转换 | |||
|
relay switching : 20 phrases in 8 subjects |
| Automobiles | 2 |
| Aviation | 1 |
| Electronic commerce | 2 |
| Electronics | 7 |
| Information technology | 1 |
| Shipbuilding | 1 |
| Space | 1 |
| Technology | 5 |