pre-assembly
| method
| pre-assembly | |
| hydroel.st. | 预装 |
| method | |
| gen. | 法; 标准; 水平 |
| environ. | 方法 |
| hydroel.st. од. | 方法 |
| mech. | 电火花法 |
| |||
| 预装 | |||
| 预装配 | |||
|
pre-assembly : 9 phrases in 6 subjects |
| Aviation | 3 |
| Metallurgy | 1 |
| Rail transport | 1 |
| Refrigeration | 1 |
| Space | 1 |
| United Nations | 2 |