coefficient adj. 共同作用的。 n. 1.共同作用;协同因素。 2.【数,物】系数,率;程度。 coefficient of absorption 吸收率[系数]。 coefficient of expansion 膨胀系数。 coefficient of displacement 排水量[系数]。
Taking into consideration of the factor include heat diffuse coefficient of soil and time , which affect soil temperature of differential deep , the model can calculates temperature of any time in different depth 模型中充分考虑了土壤热扩散率、时间对温室土壤不同深度的温度影响,可计算出任一时间、土壤不同深度的温度。
It presents a mathematical heat transfer model of air and soil temperature in greenhouse basing on the theory of transmission of heat . the model calculates the heat diffuse coefficient of soil by difference method and establishes regression equation on experimental data by sas 基于传热学的热传导方程,利用测试的地温数据,选用差分法计算了土壤热扩散率,应用sas软件拟合了非线性方程,建立了日光温室土壤温度场的数学模型。