| |||
| 单刀双掷开关 | |||
| 单刀双投开关 | |||
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| 单极双投开关 | |||
| 单刀双掷开关 | |||
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| 单刀双掷开关 | |||
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single-pole double- throw switch : 7 phrases in 5 subjects |
| Electronics | 1 |
| Geophysics | 1 |
| Nuclear and fusion power | 1 |
| Space | 2 |
| Technology | 2 |
| |||
| 单刀双掷开关 | |||
| 单刀双投开关 | |||
| |||
| 单极双投开关 | |||
| 单刀双掷开关 | |||
| |||
| 单刀双掷开关 | |||
|
single-pole double- throw switch : 7 phrases in 5 subjects |
| Electronics | 1 |
| Geophysics | 1 |
| Nuclear and fusion power | 1 |
| Space | 2 |
| Technology | 2 |