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| 展开对象 | |||
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unfolding : 21 phrases in 14 subjects |
| Agriculture | 3 |
| Air defense | 1 |
| Animal husbandry | 2 |
| Aviation | 1 |
| Bridge construction | 1 |
| Chemistry | 3 |
| Desert science | 1 |
| Genetics | 1 |
| Geophysics | 1 |
| Information technology | 3 |
| Oil / petroleum | 1 |
| Polymers | 1 |
| Statistics | 1 |
| Wrestling | 1 |