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| English | Russian |
| burnt clay hollow brick | керамический блок (zal) |
| burnt clay hollow brick | пустотелый кирпич (zal) |
| burnt clay hollow brick | керамоблок (slideshare.net zal) |
| hollow brick | керамоблок (Heavier bricks are poor insulators of sound while light weight and hollow bricks provide good sound insulation.  slideshare.net zal) |
| hollow ceramic microspheres | полые керамические микросферы (elena.kazan) |