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| 透水或不透水的覆盖层; 垫层; 罩面; 毡; 铺面; 表面层; 污泥悬浮层; 沉淀凝聚物 | |||
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ブランケット : 7 phrases in 2 subjects |
| Electronics | 2 |
| Technology | 5 |
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