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The thesis introduces the general engine development, domestic and foreign, analyses the present situation and future development trend of environment friendly lubricants, studies on theories of flow activation and low-temperature jellification which well illustrate the low-temperature property of environment friendly lubricants, researches the low-temperature flowability of environment friendly lubricants in perspective of molecule, then theoretically synthesizes plastic and flow principles of environment friendly lubricants and finally reaches a ground to explain low-temperature properties of environment friendly lubricants.

本文论述了国内外内燃机油的发展概况，分析了环境兼容润滑油的发展现状及趋势，研究了可以用于解释环境兼容润滑油低温性能的流动活化理论和低温成胶理论，从分子的角度研究了环境兼容润滑油低温流变特性，对润滑油的粘塑性流变机理进行了理论推导，找出了解释环境兼容润滑油低温流变特性的根据。

Hence, theoretically analyses on the transmission characteristics of digital jointless track circuit and design software are of great theoretical and practical value.

因此，对数字无绝缘轨道电路进行传输特性分析研究具有重要的理论意义和实用价值。

The electrospray ionization mass spectrometry was used to study the fragmentation pathway of kaempferol. The fragmentation pathway of kaempferol was also theoretically studied by means of Density Functional Theory.

采用电喷雾质谱技术对山奈酚的质谱过程进行了表征，并用量子化学方法对山奈酚的质谱裂解途径进行了理论研究。

Ray-Kirchhoff propagators are kinematically acceptable in the range of seismic frequencies for heterogeneous media, but theoretically suffer congenital deficiencies.

Ray-Kirchhoff传播算子较为精确地描述了波在非均匀介质中传播的运动学特征，其理论上的先天不足依赖于介质的复杂性。

Innovation achievements of this dissertation are mainly in the content and the method, namely: presents the content of EAP thoroughly and systematically; reviews the cost, utility and empirical studies of EAP; investigates the cost and utility of EAP theoretically, conducts the typical survey of the EAP implementation of a domestic enterprise; establishes multivariate linear regression equation of EAP utility; sets up an allocation model of EAP cost through Analytic Hierarchy ProcessThis dissertation\'s conclusion is that EAP cost is related to the time and frequency of EAP used by employee under the fixed cost, the tendency of using EAP is related to demographic characteristics and other factors, the utility of EAP is related to the personal preference of using EAP at least, the utility of EAP is leastwise related to 7 factors, the relationship with the supervisor is the most important factor in the workplace, personal health is the largest part of EAP cost.

本文的创新成果主要是内容上的创新和方法上的创新：对EAP的内容进行了全面、系统的梳理；对EAP的成本、效用和实证研究进行了综述；对EAP的成本、效用进行了理论上的探讨；对国内企业实施EAP的情况进行了典型调查；建立了EAP效用的多元线性回归方程；用层次分析法建立了EAP的成本分摊模型。本文得出的结论是：在固定成本不变的情况下，EAP的成本与员工使用EAP的时间及次数有关系；EAP的使用倾向与人口统计学特征和其它因素有关；EAP的效用至少与个人对EAP的使用偏好有关；EAP的效用至少与7个因素相关；与上级的关系是工作场所中最重要的因素；个人的身体健康是EAP成本中花费最大的部分。

So when theoretically designing motorcycles, the loca- tion of the centre of gravity must be taken care of.

因此，在进行摩托车理论设计时，必须考虑重心位置。

Theoretically speaking, these speculators are supposed to the stable and lubricative factor for the stock market.

从理论上讲，这些投机者本来应该是市场的稳定剂和润滑剂。

So, it is very difficult to monitor and protect the rotating rectifier. This paper theoretically analyses the armature current and magnetomotive force in AC exciter of brushless synchronous machine with rotating rectifier. Under the normal or fault conditions of rotating rectifier, the mathematical expressions of the armature current, the m.m.f and induced electromotive force are approached.

本文通过对旋转整流器在正常与故障状态下的交流励磁机电枢电流和电枢电势作了初步的理论分析，推导出旋转整流器在正常与故障状态下电枢电流、空间谐波合成磁势及其感应电势的数学表达式。

The effect of filter is analyzed theoretically, and two filter matrices are proposed.

理论分析了期望滤波器所达到的效果，并建议了两个合适的滤波器矩阵。

Functionalism meets the 'hardcore', which cannot be solved by itself theoretically and practically. This is caused by the misunderstanding and simplifying the problem in mind and body's relation. The major reflection is in the fundamentality of mechanicalism（but not in the orientation of materialism）.

功能主义有其本身不能解决的理论与实践&硬核&，是对心身关系问题的误解和简单化，最主要体现在其机械论基调。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。