| |||
| 机械结构 | |||
|
mechanical structure : 9 phrases in 7 subjects |
| Desert science | 2 |
| General | 1 |
| Hydroelectric power stations | 1 |
| Mechanic engineering | 1 |
| Space | 2 |
| Sports | 1 |
| Technology | 1 |
| |||
| 机械结构 | |||
|
mechanical structure : 9 phrases in 7 subjects |
| Desert science | 2 |
| General | 1 |
| Hydroelectric power stations | 1 |
| Mechanic engineering | 1 |
| Space | 2 |
| Sports | 1 |
| Technology | 1 |