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To calculate the effective diffusivity of benzocaine, it requires knowing the dependence of benzocaine diffusivity on ethanol concentration and the ethanol concentration profile across membrane.

要计算有膨润梯度下benzocaine在膜中的扩散系数，必须先知道乙醇在膜中的浓度分布，及均匀膨润下扩散系数与乙醇浓度间的关系。

By making use of the property that the zero-order Bessel function's derivative J′0(0)=0, the DQDHT can calculate the values on the symmetry axis directly.

通过利用零阶贝塞尔函数导数在零点处为零的特性，所提出的准离散汉克尔变换算法可以直接计算光束传输时对称轴上的值。

In this paper, with polygon line hypothesis of τ-u relationship of horizontal restrained condition of foundation, and winker hypothesis of vertical restrained condition of foundation, a new analytical method to calculate thermal stress of mass concrete structure on foundation with biconditional restriction is presented.

1概 述在现有的地基上砼板温度应力的计算方法中，多考虑地基的单向非刚性约束及假定板全截面均匀受力进行有关的推导与分析。

Two methods are presented to calculate the lower bound and upper bound on the bisection width of H-Torus topology.

针对H-Torus拓扑结构，给出两种确定该拓扑结构等分带宽上、下界的方法。

Based on the invariance of maximum likelihood estimation, the sufficient and necessary condition under which the maximum likelihood estimation has invariance for the parameters are given, then it uses this conclusion to calculate the maximum likelihood estimation of σ^2 and ρ for bivariate normal distribution.

根据参数极大似然估计不变性原则，给出在一定条件下极大似然估计具有不变性的充分必要条件，并利用该结论计算了二元正态分布Z=的未知参数σ^2和ρ的极大似然估计值。

Based on observed and hindcast data, a bivariate Pearson Ⅲ distribution is adopted to calculate the joint probability of extreme wind velocity and wave height.

本论文以观测和后报资料为基础，针对我国渤海某区的特点，将二维皮尔逊Ⅲ型分布用于极值风速与波高的联合概率计算，综合比较多种统计模式所求得的设计荷载，对我国边际油田开发的环境条件设计标准提出建议。

On the basis of slip-diffusion model of multiphase flow, a three-dimensional mathematical model of gas-particle flow in blowpipe has been developed and debugged to calculate the gas-solid two phases flow, including gas velocity and particle velocity inside the blowpipe.

运用多相流的拟流体模型建立了高炉局部富氧喷煤直吹管内气粉两相流动的数学模型，对气粉两相流场进行了数值研究，探讨了气相和煤粉的速度分布规律及其影响因素，其中包括氧-煤喷枪的结构、漩流数和富氧率等。

The perpetual inventory system on the values of all assets are normally increasing number and reduce the number of according to relevant accounting vouchers in the books in the registration and settlement account at any time in the property of the book inventory count materials, Usually only for field inventory system of all assets according to the increasing number of relevant accounting vouchers, account credited without registration number, reduce inventory of each month according to the actual number of inventory assets, calculate this number, and reduce relevant account books recorded.

永续盘存制平时对各项财产物资的增加数和减少数都要根据会计凭证在有关的帐簿中进行连续的登记，并随时在帐簿中结算出各项财产物资的帐面结存数；实地盘存制平时只对各项财产物资的增加数根据会计凭证记入有关帐户，而不登记减少数，月末根据实地盘点的各项财产物资的实际结存数，计算出本期减少数，并记入有关帐簿。

Firstly, some fundamental knowledge, such as the describing of laser field, the Kind of electron-atom scattering in a laser field, and so on, are introduced. Then a compution method which is called the Second-order Born approximation and is used to calculate the cross section of electron-atom scattering in a laser field, is provided.

本文首先介绍了激光场的描述、激光场中电子—原子散射的分类等相关理论，接着详细描述了一种计算激光场中电子—原子散射截面的方法——二阶玻恩近似理论。

At last,We carry out stability asssessment about the vegetation in virtue of the model builded in this plot.We calculate the vegetation's ecological water requirement on May 2004: canopy of Robinia pseudoacacia L require 5.2mm, Top of Melilotus albus Desr require 32.2mm, Bottome of Melilotus albus Desr require 8.6mm, Layer of soil require 17.6mm, totalize 63.6mm,Which more 22.33 mm than the contemporaneous rainfull 41.27mm.

最后通过本次研究构建的模型对项目区植被进行了稳定性评价，计算出2004年5月份复合植被的生态需水量，分别为刺槐冠层5.2mm，草木樨上层32.2mm，草木樨下层8.6mm，土壤蒸发17.6mm，总计63.6mm，这个结果比当月的多年平均(1980-2002年)降雨量41.27mm多出了22.33mm.6月初白花草木樨收割以后，次生茬生长缓慢，我们假设草木樨没有被收割，分别计算了6月和7月的生态需水量，6月份生态需水为85.64mm，7月份为78.41mm，发现6月份水分亏缺依然严重，7月份降雨完全可以满足复合植被的蒸散需求。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。