 |
| |||
| 接通-断开; 开启-关闭; 开和关; 通和断 | |||
| 关一开; 合一断 | |||
| 关-开; 合-断 | |||
| 关-开 (C.O.); 合-断 (C.O.); 启-闭 (C.O.) | |||
| close- open: 32 phrases in 13 subjects |
| Air defense | 1 |
| Aviation | 3 |
| Economy | 1 |
| Electricity | 1 |
| Electronics | 6 |
| Finances | 1 |
| General | 2 |
| Hydroelectric power stations | 4 |
| Rail transport | 1 |
| Securities | 2 |
| Shipbuilding | 2 |
| Technology | 7 |
| Wushu | 1 |
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