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| 21. | warm air heating unit |
| 热风供暖装置 |
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| 22. | waste steam heating |
| 废汽供暖 |
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| 23. | central heating appliance |
| 集中供暖设备 |
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| 24. | oil-fired heating burner |
| 供暖油燃烧器 |
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| 25. | the heating system wasn't working; they have radiant heating. |
| 供暖装置不工作了；他们有辐射供暖装置。 |
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| 26. | intermitting heating |
| 间歇供暖|间歇加热 |
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| 27. | heating oil |
| 取暖用油,供暖用油 |
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| 28. | low pressure steam heating |
| 低压蒸汽供暖 |
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| 29. | heating installation |
| 暖气设备|供暖装置 |
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| 30. | hot-water heating equipment |
| 热水供暖设备 |
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