| |||
| 单刀单投开关 | |||
| 单刀单掷开关 | |||
| 单极单投开关 | |||
| |||
| 单刀单掷开关 | |||
|
single-pole single- throw switch : 16 phrases in 8 subjects |
| Aviation | 1 |
| Electronics | 3 |
| Geophysics | 1 |
| Hydroelectric power stations | 1 |
| Navigation | 1 |
| Nuclear and fusion power | 1 |
| Space | 3 |
| Technology | 5 |
| |||
| 单刀单投开关 | |||
| 单刀单掷开关 | |||
| 单极单投开关 | |||
| |||
| 单刀单掷开关 | |||
|
single-pole single- throw switch : 16 phrases in 8 subjects |
| Aviation | 1 |
| Electronics | 3 |
| Geophysics | 1 |
| Hydroelectric power stations | 1 |
| Navigation | 1 |
| Nuclear and fusion power | 1 |
| Space | 3 |
| Technology | 5 |