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| expanding section; expanding reach | |||
| belled-out section; expansion section | |||
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扩大段 : 10 phrases in 6 subjects |
| Astronautics | 2 |
| Economy | 1 |
| Hydroelectric power stations | 2 |
| Oil / petroleum | 1 |
| Project management | 1 |
| Technology | 3 |
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