热扩散

We use heat equation and binomial model to solve the function.

解方程式则用了热扩散方程法以及二项式模型；二项式模型用了Cox、Ross、Rubinstein所提出的CRR二元树的概念推导选择权期初价格，所得到的二项式模型极限值将逼近於布莱克-休斯模型。

The white carbon black formed good thermal conductivity network with the molecular chain of the rubber, and the dispersion of the white carbon black in the natural rubber matrix was improved when the surface of the white carbon black was treated with Si-69, and the thermal diffusivity of the rubber was improved greatly.

白炭黑在Si-69的表面改性作用下，能与胶料分子链形成较好的导热网络结构，使其在天然橡胶基质中的分散程度得到改善，从而使胶料的热扩散系数得以提高。

Sample tube has a 200W chrome steel strip heater and a hinged cover to maintain even heat distribution.

样品管下端有一个200W铬钢加热棒和铰链来进行样品加热和热扩散分部。

In addition,the novel method is applied to measurement thethermal diffusion coefficient of brass and aluminum.The measurement results are ingood agreement with the standard.

通过理论与实验结果的拟合，实际测量了黄铜和铝样品的热扩散系数，获得了满意的结果。

The results show that AlN ceramics sintered by nano-additive have a better sintering activity and higher thermal diffusibility .

结果表明：纳米级添加剂Y2O3-Dy2O3能更好地提高AlN陶瓷的烧结活性，热扩散率也更高。

Use of the finite element method, 2D FEM calculation of thermal diffusion equation.

使用有限元方法， 2D FEM计算热扩散方程。

Soil thermal diffusivity is a key factor that affects the soil temperature.

土壤热扩散系数为土壤温度变化的一个重要因素。

In materials marked by low thermal diffusivity, the absorption is good.

热扩散率低的物质吸收性好。

A method to measure thermal diffusivity of opaque materials by a laser photothermal radiometry technique is introduced in this paper.

报道了一种用激光光热辐射技术测量不透明材料热扩散率的方法。

Soil temperature is an important parameter in the processes of land and atmosphere interaction, and soil thermal diffusivity is an important soil property.

土壤温度是气－地交互作用过程中的一个重要变数，而土壤热扩散系数为土壤温度变化的一个重要因子。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。