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| 复合楼板 (board); 复合地板 (board); 组合楼板 (board); 组合地板 (board) | |||
| 组合地板 | |||
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composite floor : 15 phrases in 4 subjects |
| Architecture | 1 |
| Automobiles | 1 |
| Hydroelectric power stations | 1 |
| Technology | 12 |
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