| |||
| 光源自控开关 | |||
|
automatic control : 14 phrases in 8 subjects |
| Aviation | 1 |
| Electricity | 1 |
| Electronics | 1 |
| General | 2 |
| Hydroelectric power stations | 1 |
| Mechanics | 1 |
| Space | 1 |
| Textile industry | 6 |
| |||
| 光源自控开关 | |||
|
automatic control : 14 phrases in 8 subjects |
| Aviation | 1 |
| Electricity | 1 |
| Electronics | 1 |
| General | 2 |
| Hydroelectric power stations | 1 |
| Mechanics | 1 |
| Space | 1 |
| Textile industry | 6 |