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The differential eguations and boundary conditions are established, based on these hypotheses. The theoretical formulary about sample atom number with different diffusion coefficient are reasoned out; the relationship between the isotope abundance ratio and the sample wastage of melting and solid samples and the samples simultaneously at evaporation and decomposition are discussed in theory.

根据这三条假设建立了样品原子数的微分方程及边界条件，推导出了不同扩散系数的样品原子数的理论公式，从理论上讨论了熔融态、固态样品以及蒸发分解同时发生的样品同位素丰度比与样品消耗量间的关系。

Based on law of non—statistics method, the quality rule for selection of antifreezing admixture in winter concreting was analysed, and the acceptance boundary line of concrete strength to select antifreezing admixture type in different weather conditions was also presented.

用非统计法原理分析了冬施中砼防冻剂选用的质量原则，并根据不同气温条件下，选用防冻剂品种，给出了控制冬期砼施工质量的防冻剂砼强度验收界限，供施工单位参考。

In the aspect of yield optimization, the worst-case distance from the circuit parameter center to the acceptance region boundary are treated by the objective function of yield optimization.

在电路成品率优化方面，将当前电路参数中心到可行域边界的最坏情况距离，作为电路成品率优化的目标函数，利用梯度优化算法，使最坏情况距离达到最大，从而优化电路的成品率。

The donor impurity and grain boundary combustion-supporting agent containing acceptor impurity were added successively in the ceramic powder during ceramic powder preparation, both of them can also promote grain growing and semiconductive, and the combustion-supporting agent can be good to form insulation layer in oxidizing process.

采用一次性烧成技术研制了晶界层半导体陶瓷电容器，在瓷料配制过程中先后加入施主杂质和含有受主杂质的晶界助烧剂，两者在还原烧成时促使晶粒生长并半导化，助烧剂在氧化时有利于晶界绝缘层形成。

Charon's purpose was to ferry the souls of the dead across the River Acheron, a segment of the River Styx, the boundary of the Earth from the Greek Underworld.

卡戎是希腊神话中的人物，摆渡死者的灵魂穿越连接人间和冥界的冥河的神。我没按原文翻译。

The outer, non-metallic layers of the planet form what are known as achondrite stony meteorites, and there is a separate class of stony-irons that come from the boundary between inner core and outer layer.

位于行星外部的非金属层形成无球粒陨石石质陨石，在内核和外层之间还存在有一层独立的石质铁层。

Mainly, the article divides into six contents: system development background and method of exploitation, demand analysis, system analysis, system design, system implementation and conclusion. In demand analysis, has established first with the example model, and comes the detailed description through the active chart to use the example. Through the sequence chart and the VOPC chart, I completed the definition of boundary, control and data entity of the fore-platform in system analysis. The system design mainly has carried on the detailed design to kind of and the database.

在需求分析中，先建立了用例模型，通过文字和活动图来详细的描述用例，确定了前台子系统的各个功能模块；系统分析中，使用序列图和VOPC图完成了对系统运作过程中涉及的界面、控制、数据实体的定义；系统设计主要主要对类及数据库进行了详细的设计；系统实施中，对前台子系统的物理部署、实施环境进行描述，包括系统的主要界面和部分代码。

With the data of the ADAS Sounding System, analysis is made of the winter at Chongqing space-time distribution of temperature, humidity and wind of the atmospheric boundary layer with an approach to the environmental regime for the fog there.

利用ADAS探测系统资料，分析了重庆市区冬季大气边界层温、湿、风的时空分布，讨论了重庆多雾的环境条件。

For this purpose, two expressions for the Graf′s addition theorem are deeply clarified and an auxiliary function method for mixed boundary-value problems is presented in the paper.

为此，文中深入阐明了Graf加法公式的两种表达形式并提出了处理混合边值问题的辅助函数法。

As for mixed problem with integral boundary conditions for a certain nonlinear pseudo-parabolic partial equation, the existence and uniqueness of a strong solution to the corresponding linear problem is established and so the nonlinear problem can be solved by using addition theorem.

对于一类非线性伪抛物型方程的带积分边值条件的混合问题，本文通过相应的线性方程利用迭加原理来解决。

The common man has been kept in his place by his betters.

这个 普通人的职位一直没变，他的上级一直没有提拔他。

In the estrogen group, the laryngeal epithelium was thicken, the cup cell increased, the hydrops was under the mucous membrane, and the lymphocyte was soaked.

雌激素组喉上皮厚度增加，杯状细胞增多，黏膜下水肿，淋巴细胞浸润