 |
| |||
| 封闭型式 | |||
| 封闭式 | |||
| 密闭式; 封闭型; 闭锁式 | |||
| enclosed type: 58 phrases in 13 subjects |
| Agriculture | 3 |
| Bridge construction | 2 |
| Chemistry | 2 |
| Compressors | 2 |
| Drilling | 1 |
| Ecology | 1 |
| Electric machinery | 6 |
| Electronics | 2 |
| Hydroelectric power stations | 3 |
| Metallurgy | 1 |
| Nautical | 2 |
| Refrigeration | 2 |
| Technology | 31 |