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| single pole double throw | |||
| single-pole double-throw | |||
| single-pole double throw | |||
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| single-pole double-throw switch | |||
| single-pole double-throw | |||
| 单刀双掷: 15 phrases in 10 subjects |
| Automobiles | 1 |
| Aviation | 1 |
| Earth sciences | 2 |
| Geophysics | 1 |
| Hydroelectric power stations | 1 |
| Information technology | 2 |
| Navigation | 1 |
| Oil / petroleum | 1 |
| Space | 3 |
| Technology | 2 |