以下为句子列表：
英文: The heat quantity given off from floor surface with different floor materials and different floor structure is calculated.
中文: 摘要用数值计算的方法计算了不同地面层材料和不同地板层结构的地表散热量。
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英文: This article analyzes the characteristics of permafrost earth, establishes mathematical model of earth thermal transfer, which consists of thermal transfer equation in thaw zone, the conservation relationship of heat quantity transferring from pipeline to
中文: 文章分析了永冻土的特点，建立了永冻土地带土壤传热数学模型：融化圈内外传热方程、管道向土壤和土壤表面向大气所放热量的守恒关系、融化圈界面处土壤温度、相变界面处固相变为液相的传热条件。
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