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| 单叶 (folium singulare) | |||
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| 单一门扉 | |||
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single leaf : 32 phrases in 8 subjects |
| Agriculture | 3 |
| Automobiles | 3 |
| Bridge construction | 3 |
| Hydroelectric power stations | 1 |
| Project management | 1 |
| Rail transport | 1 |
| Refrigeration | 1 |
| Technology | 19 |
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