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The traditional virtual boundary integral expression is based on the extension of single layer potential, for the integral formulas related to single layer potential for parabolic problem, the numerical computation of the exponential integral function is unavoidable.

通常的虚边界积分公式是利用单层位势的延拓来建立虚边界元积分方程，但对带时间变量的单层位势，要涉及到指数积分函数的计算。

Based on the improved Bajsanski-Bojanic parabolic method and the related properties of integral operators, a global saturation theorem for the mixed exponential type integral operatorLnis established.

研究了该类混合指数型积分算子的性质，利用改进的Bajsanski-Bojanic抛物线技巧及积分算子的有关性质，建立了一类混合指数型积分算子的整体饱和定理。

So, the saturation results of some operators including Baskakov operator can be obtained easily, hence laying a basis for studying the approximation transformation theoremof the mixed exponential type integral operators, and presenting a new method for studying the saturation problems.

这样，包含Baskakov型在内的相关积分算子的饱和结果便可以很容易得到，为研究混合指数型积分算子的逼近转化定理奠定了基础，也为研究算子的饱和问题提供了新的方法。

The experimental results show that He-Ne laser penetration of tissues obeys the law of exponential attenuation.

实验证明He—Ne激光穿透组织是遵循指数衰减的规律。

The electron number density does not strictly obey exponential damping law in a long period.

电子数密度在很长的一段时间内不遵循指数衰减规律。

0Wt%C. Ranging from 1160 to 1440℃, the viscosity of eutectic Fe-C alloy decreases with increasing temperature in an exponential law.

在1160～1440℃内，液态共晶Fe-C合金的粘度随温度的降低呈指数规律的增加。

Also presented an improvement for the general exponential approximation law in the paper.

同时对于普通指数趋近率提出了改进方法；最后在Matlab环境下对此滑模控制进行了仿真。

Assuming that the mechanical, electric and thermal properties of the material have the same exponential law dependence on the thickness-coor...

所获得的精确结果可作为评价其他近似方法的标准解答或者作为建立简化的功能梯度热释电材料平板理论的基础。

Theoretical calculation shows: the temperature dependence of CRSS obeys the approximate exponential law, which agrees with experimental law.

本文计算了Al、Cu、Fe和Mo的临界切应力与温度的关系。

Based on the error analysis of the GM(1,1) model,we use the discrete function with non-homogeneous exponential law to fit the accumulated sequence to propose a new method to optimize the background value in GM(1,1) model.

在实际应用与理论研究过程中，人们发现了GM(1，1)模型的诸多局限性并作了改进，取得了较好的预测效果[6~9]。

He tendered his resignation to the Prime Minister.

他向首相递了辞呈。不适合

International economy and trade,Nanking 210044

国际经济与贸易，南京 210044