With the tested result of natural ventilation system in an office building in Shanghai, analyses the irrationality of using the energy utilization coefficient to evaluate natural ventilation.
根据对上海一办公楼建筑通风系统的实测，分析了能量利用系数用于评价自然通风系统运行效果的不合理性。
The relations of the ground state energy with the coefficient of dispersion, strength and magnetic field strength are derived by using linear-combination operator and unitary transformation method.
采用线性组合算符和幺正变换的方法，得出极化子基态能量与色散系数、耦合强度以及磁场强度之间的关系。
Theoretical analysis using the method of energy equilibrium in covering layer and validation of the overall heat transfer coefficient of greenhouse covering materials;
进一步研究了在结霜过程中空气冷却器的传热面积、传热系数以及空气侧压降与霜层生长的变化关系。
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