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| |||
| 空腔壁 | |||
| 空心壁 | |||
| 空心墙 | |||
| 模槽璧 | |||
| 中空墙; 空斗墙; 空芯墙; 隔墙; 窝洞壁; 双层墙; 双层壁 | |||
| 防滴水双层壁; 水汀夹板 | |||
| cavity wall: 42 phrases in 4 subjects |
| Agriculture | 1 |
| Architecture | 5 |
| Aviation | 2 |
| Technology | 34 |
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