Common heat exchanger models are based on the theories of line heat source and column heat source.
常见的地下换热器传热模型的理论基础主要有线源理论和柱源理论两种。
A mathematical model for simulation of ground source heat pump system is built based on line heat source theory.
本文中的模型可以对土壤源热泵系统的设计方案进行经济性评估，以便设计人员选取经济性较好的方案。
Heat device is a heat source specially designed and developed for the drying of painting line.
加热装置是专为涂装生产线烘干而研制开发的。
Heat device is a heat source specially designed and developed for the drying of painting line.
加热装置是专为涂装生产线烘干而研制开发的。
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