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| 古罗马的炕; 集中供暖系统; 罗马式火炕供暖装置 | |||
| 火炕供暖; 火地供暖 | |||
| 火坑式采暖装置 (古罗马); 地板下蓄热式采暖; 火坑供暖; 古罗马地炕采暖构造 | |||
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