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| 底部封闭，上端开口沉箱 | |||
| 封底式沉箱 | |||
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caisson box : 20 phrases in 5 subjects |
| Engineering geology | 4 |
| Hydroelectric power stations | 2 |
| Metallurgy | 1 |
| Port facilities | 1 |
| Technology | 12 |
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