名词
中文翻译：内部供暖系统
同义词：
['internalheating system', 'interior heating system', 'internalheating system']
例句：
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1. Thenew apartment has a modern interior heating systemthat keeps the house warm and comfortable.
这个新公寓有一个现代的内部供暖系统，使房子温暖舒适。
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2. The old building had anoutdated interior heating system that was difficult tomaintain.
这座老建筑有一个过时的内部供暖系统，难以维护。
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3. The engineer replaced the faulty interior heating system with a more efficientmodel.
工程师用一个更高效的模型替换了故障的室内供暖系统。