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测量了钢和石墨的热扩散率。The thermal diffusivity of steel and graphite is measured.

煤的灰层扩散系数对煤粒的燃烧有较大的影响。The barrier diffusivity of coal effects its combustion greatly.

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扩散系数是传质过程的一个重要参数。Diffusivity is an important parameter of the mass transfer process.

在表面覆盖度比较高时，表面扩散系数有一极大值。There is a maximum of the surface diffusivity in high surface coverage.

根据空位机制，从扩散流量导出钼的扩散系数的表达式。This paper derives the expression of the diffusivity of molybdenum from diffusion flow.

因此，三次样条函数法是计算土壤水分扩散率的一种简便可行的方法。Therefore, the method is a simple workable one for calculation of soil water diffusivity.

因此，本文用实验的方法测定了三种煤的灰层扩散系数。In this paper we reported the experimental results of the barrier diffusivity of coal particles.

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因此，在用梯度准则模拟湍流输运时，其输运系数应是一个二阶张量。So the turbulent diffusivity in gradient transfer model of scalar should be a second order tensor.

利用扩散率函数的特性，提出一种实现数字图像放大的新方法。Based upon the property of diffusivity function, a new method to enlarge a digital image is proposed.

研究了人为变化的不同热扩散系数对枝晶生长行为的影响。The dependence of dendritic growth behavior on intentionally varied thermal diffusivity DT is investigated.

采用“单粒柱”新技术，测定了水蒸汽在粒状调湿剂中的有效扩散系数。A new technique was developed for the measurement of diffusivity of water vapor in humidity controlling agent.

并结合特征曲线方程，给出了土壤水分扩散率的表达式。With the soil water characteristic curve, the expression of soil water diffusivity is also given in this paper.

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报道了一种用激光光热效应直接测量纳米材料热扩散率的方法。A method of using the photothermal effect in the direct measurement of diffusivity of nanometer materials is reported.

土壤容重、孔隙大小、孔隙类型及土壤颗粒组成中粘粒含量对土壤水分扩散率都有一定的影响。Then, the bulk density, porosity, the type of pore and clay content in the soil affected the soil moisture diffusivity.

对硝态氮示踪的风沙土和黄潮土中水分及其扩散率进行了研究。The water moisture and its diffusivity in yellow fluvo-aquatic and aeolian sandy soils traced by nitrate-N were studied.

随着钎焊温度的升高和保温时间的延长，两者的差别减小。Discrimination of diffusivity reduces with the increase of soldering temperature and prolonging of heat-retaining period.

实验结果表明，有效扩散系数随温度升高而增大，吸咐平衡常数则正好相反。With the increase of temperature the adsorption equilibrium constants decrease while the effective diffusivity increases.

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本文在自行设计测试装置的基础上，开发基于组态王技术的瞬态热流法测试软件系统。A test software system for determining thermal diffusivity based on Kingview and transient heat flow method was devel- oped.

并分析了降雨强度、水分扩散率以及导水率变化对边坡水分运移的影响。The effect of rainfall intensity, water diffusivity and hydraulic conductivity to the water distribution were also analyzed.

但是，关于椎间盘中葡萄糖扩散系数的拉伸依靠性和各向异性行为的熟悉很少。However, little is known regarding the strain-dependent and anisotropic behavior of glucose diffusivity in intervertebral discs.