| |||
| 组合结构 | |||
|
packed structure : 26 phrases in 10 subjects |
| Chemistry | 4 |
| Computer networks | 1 |
| Desert science | 1 |
| Electronics | 1 |
| Metallurgy | 7 |
| Nuclear physics | 1 |
| Oil / petroleum | 3 |
| Plastics | 1 |
| Polymers | 2 |
| Technology | 5 |
| |||
| 组合结构 | |||
|
packed structure : 26 phrases in 10 subjects |
| Chemistry | 4 |
| Computer networks | 1 |
| Desert science | 1 |
| Electronics | 1 |
| Metallurgy | 7 |
| Nuclear physics | 1 |
| Oil / petroleum | 3 |
| Plastics | 1 |
| Polymers | 2 |
| Technology | 5 |