Unit Level | Circuit Switch
| circuit switch abbr. | |
| el. | 电路开关; 电 路交换 |
| tech. | 电路转接; 电路开关 |
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Unit Level : 25 phrases in 11 subjects |
| Automobiles | 2 |
| Aviation | 7 |
| Business | 1 |
| Corporate governance | 1 |
| Economics | 1 |
| Electronics | 6 |
| Rail transport | 1 |
| Space | 1 |
| Technology | 1 |
| Telecommunications | 1 |
| United Nations | 3 |