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| пустотелый кирпич | |||
| перфорированный кирпич | |||
| дырчатый кирпич; пористый камень; пористый кирпич | |||
| 多孔砖: 5 phrases in 3 subjects |
| Construction | 2 |
| Metallurgy | 1 |
| Technology | 2 |
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