名词
中文翻译：底层地板材料
同义词：
['underfloor heating', 'underfloor heating mat', 'underfloor insulation']
例句：
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1. The subflooring was installed last week, and it's already starting to show signs of wear.
上周安装的底层地板材料，已经开始出现磨损的迹象。
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2.The engineer recommended using a layer of underfloor insulation to improve the energy efficiency of the building.
工程师建议使用一层底层隔热材料来提高建筑的能源效率。
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3. The subflooring is designed to provide a stable base for the installation of the heating system.
底层地板材料设计为为供暖系统的安装提供稳定的基座。