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Based on the theory and experiments, the paper builds up the simplified mathematical model of the servo control system, deduces the system control rigidity expression, and points out the method to improve control rigidity. According to Routh stability criterion, the analytic stability condition is solved, which shows the conflict between the stability and control rigidity and that gyroscope is the key factor of the conflict.

论文结合理论和试验建立了光电稳定伺服控制系统的简化数学模型，推导出系统控制刚度表达式，指出提高控制刚度的方法；利用劳斯判据求解出系统稳定的解析条件式，描述了稳定性与控制刚度之间的矛盾，并指出陀螺是矛盾关键。

The development of the index have catched up with the development of the economy and the society.We can ameliorate our index in many ways. We can fetch in new index,such as rewarding index of investment capital, it can be used to avoid the ruleless fluctuate caused by unregular revenue. We can fetch in the accrual ability of immateriality assets and "social responsibility" to enhance the deal of non-currency info and knewledge assets info. We can fetch in the method of key index analyse through relevancy analyse to conform the sequence of significance.

我们可以从多方面对指标进行改进，可以通过引进新指标如投资资本报酬率来克服因非经常性收益使企业业绩出现忽高忽低地波动的问题；可以通过引入无形资产获利能力评价指标、"企业社会责任"的概念来加强企业非货币性信息、知识资产信息在评价体系中的份量；通过引进企业获利能力关键指标的灰色关联分析来科学地确定指标的重要性顺序，以减少指标使用的盲目性。

In the run-up to the London Summit, there have been several key achievements.

在筹划这伦敦峰会期间，我们已取得几项主要成就。

The idea is promising, he said, but the key to success is scaling up the technology.

这一想法是非常有前景的，只是成功的关在在于技术上的扩大

The key finding of this meeting is that we have up to one-meter sea-level rise by 2100, based on our new insight of glaciers.

这次会议的重要发现是，我们还有1米的海平面上升，到2100年，在我们的冰川新的认识基础。

There Moses' own self-abnegating love, which willingly offered up his life for his people, disclosed the very qualities of God as far as they touch both the mystery of sin and the divine forgiveness, and this became the key to the comprehension of the Biblical idea of Atonement.

有摩西自身abnegating爱情，而心甘情愿地提供了他的生命，为他的人透露，相当素质的神，据他们接触，无论是神秘的单仲偕和神的宽恕，这成了关键要理解的圣经的想法赎罪。

Self-respect is the key. It'll show up in the way people deal with you.

自傲是首要，这也会影响到人们对你的态度。

The results shows:most periodical is bimonthly and there are only 4 semimonthly publications;the start publication time is centralized in 80 decade,20 century;publication area of the most periodical is Beijing city and the other periodical is in Jiangsu,Liaoning,Shanxi,Heilongjiang,Henan,Hubei and Zhejiang province;most periodical join in network with pe- riodicals network and there are few independence web site;there are 19 forestry kernel periodicals is summed up to agri- cultural key periodical.

历时两年时间，对我国公开出版的农业期刊进行了评选，于创】万年推出了中国农业核心期刊2田万版。中国农业核心期刊的推出，无疑给农业类期刊提供了一个更多的参考标准与依据。笔者无意对其评选的公正性等方面作深人探讨，而只是对入选期刊进行一个粗略的分析，以窥核心期刊之概况，并以此供期刊界同仁参考。

This text has carried on brief summing-up to existing semisolid process technology,the key technology question and developing direction have been discussed and analyzed.

对半固态加工技术进行了简要的归纳，讨论并分析了其关键技术问题和发展方向。

Mathematics concept is the basic point of mathematics content, the start point of lending theorem or rule, and the key point of setting up the theory system.

数学概念是数学内容的基本点，是逻辑导出定理、公式、法则的出发点，是建立理论系统的着眼点；同时，它又是学生认知的基础，是学生进行数学思维的起点。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。