 |
| |||
| "开-关-开" | |||
| 开-关-开 | |||
| |||
| 开闭开; 打开接通打开 | |||
| open-close-open: 39 phrases in 14 subjects |
| Aviation | 1 |
| Economy | 1 |
| Electronics | 10 |
| Finances | 1 |
| General | 2 |
| Hydroelectric power stations | 4 |
| Mechanics | 2 |
| Rail transport | 1 |
| Securities | 2 |
| Shipbuilding | 2 |
| Space | 2 |
| Technology | 7 |
| Textile industry | 3 |
| Wushu | 1 |