结果表明当电子半径大于一个临界长度时，方程的解表现出良好的性质，不会出现奔离和预加速的现象。

It is shown that when the radius of the electron is greater than a critical length, the behavior of the solution is fine, no run-away and pre-acceleration appears.

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本文还详细探讨了信息抓取模块中负责访问网络部分的效率分析，采用DNS预转换的方式加速网络爬虫的访问速度。

The efficiency of the information fetch component access the network is discussed, the KM takes DNS pre-convert method to accelerate the speed of access the internet.

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以冲压加速器为工程背景，着重研究预混燃气高压不稳定燃烧问题。

In this paper, the ram accelerator is taken as engineering background, the high pressure abnormal combustion of a combustible gas mixture is studied.

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