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When the elliptical coaxial line becomes a circular coaxial line, the mode eigenequation of the circular coaxial line can be obtained from the mode eigenequation of the elliptical coaxial line using the asymptotic formulae of angular and radial Mathieu functions.

研究表明：当椭圆退化为圆时，利用角向和径向马修函数的渐进关系，可得到填充多层介质的圆形同轴线的模式特征方程，由此可见，圆形同轴线可看作椭圆形同轴线的特例；当椭圆同轴线内导体半长轴大小为零时，则椭圆同轴线就变成椭圆波导，同样的方法，可得到填充多层介质的椭圆波导模式特征方程。

Since the China telecom industry introduced competition mechanism, mobile service providers have developed themselves at a tremendous speed. Meanwhile, fixed-line telecom service providers, including China Telecom and China Netcom, are facing severe challenges. The network services and traditional telephone services provided by China Telecom can no longer fulfill the various requirements from customers. The ARPU value of the fixed-line telephone services keeps decreasing and the broadband network services becomes SP's information transmission channel due to lacking provision of contents.

自从中国电信市场引入竞争机制以来，移动运营商发展迅速，固网运营商（包括中国电信和中国网通）面临严峻挑战，中国电信所经营的网络业务和传统的电话业务已无法应对日益增长并趋于多样化的用户需求，固网话音业务ARPU值的持续下滑已成为不争的事实，宽带网络也由于没有自己的业务而成为SP的信息传输管道。

He said that if flu spreads and becomes more severe, particularly in the winter months, there will be concerns about people working at close quarters in offices and travelling together on tubes, trains and buses.

他说，如果流感得以传播并越来越严重的话，那么那些集中办公的人们，以及地铁、火车、公共汽车上的人们就更令人担忧了，尤其是在冬天。

At the age of maturity, he has a clear view on himself, but becomes merciless for sermonizers.

在步入成熟年纪后，他更清楚地认清自己，但这些想法总被爱说教的人们大肆批评。

If he won't succeed forever, this just becomes others at one's leisure talk endowment just, need not how long can people forget.

假如他永远不会成功，这只不过成为别人茶余饭后的谈资而已，不用多久人们就会忘记。

Numerous medicine incident held paper in the front article of the front page., the one prate that becomes people at one's leisure endowment.

众多医药事件占据了报纸的头版头条，成为人们茶余饭后的一大谈资。

In ultimate sense, the reason that culture carrier becomes an inevitable existence lies in two thirsts of people: the thirst for athanasia and the thirst to surpass the limitation of substance.

从终极意义上讲，文化载体之所以成为一种无可替代的存在，正是源于人的两种渴望：渴望生命的永恒和渴望对"物"的超越。

For instance, it becomes a burden to inefficient transport ation system.

例如，它增加了我国本来效率不高的运输系统的负担。

The results indicate that the effect of alloying elements V and Cr on mechanical properties at room-temperature, creep behavior and microstructures are similar. With increasing contents of V and Cr, their mechanical properties produce little change, the creep resistant property decreases and microstructure grows, which is mainly due to their characteristics of β-stability element and smaller atomic radius compared with Ti. On the contrary, the effects of V and Cr on the thermal stability are quite different. With increasing V content or decreasing Cr content the thermal stability for the alloy becomes better, which may be due to the different solution characteristics of V and Cr element in titanium alloy that V belongs to isomorphous β-stability element and Cr belongs to eutectoid β-stability element.

结果表明：合金元素V和Cr对Ti40合金室温力学性能、蠕变行为和组织的影响具有相似性，即随V和Cr含量的降低，合金室温综合力学性能变化不明显、抗蠕变能力减弱、组织粗化：这与V和Cr同属于β稳定元素、且原子半径都小于Ti原子有关；而V和Cr对于热稳定性能的影响则完全相反，V含量的增加或Cr含量的降低含金热稳定性能优化，其主要原因可能与V属于同品型β稳定元素而Cr属于共析型β稳定元素有关。

The analysis for atomicity of e-commerce protocol becomes the subject of reality.

这样电子商务协议的原子性的分析验证就成了一个现实的课题。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。