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| hot water heating | |||
| hot-water heating | |||
| hot heating; hydronic heating; water heat; water heating | |||
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| hot water heating | |||
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| hot-water heating | |||
| 热水供暖: 60 phrases in 7 subjects |
| Agriculture | 1 |
| Architecture | 1 |
| Ecology | 1 |
| Hydroelectric power stations | 2 |
| Nautical | 1 |
| Refrigeration | 21 |
| Technology | 33 |
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