在本质上

Ringel realized positive parts of semisimple Lie algebras in the framework of Ringel-Hall algebras. The main result of this thesis is to build a geometric and topological model over triangulated categories such as derived categories and stable module categories of repetitive algebras. We defines a Lie bracket by Euler characteristics of constructible subsets and thus realizes infinite dimensional Lie algebras of various types with non-degenerated bilinear form.

本文的主要结果是在导出范畴和重复代数的稳定模范畴等三角范畴水平上建立相应的几何-拓扑模型，并利用相应可构集的欧拉示性数定义了一个Hall代数的交换子乘法，从而在三角范畴水平上实现了一大类无限维李代数的整体构造，并且这类李代数本质上都具有非退化的不变双线性型。

Theoretical Part: Through theoretical analysis of chemothermodynamics, combustion and engineering thermodynamics, factors that affect explosion limit were determined, which include temperature, pressure, spark ignition energy, electrode shape, direction of flame propagation and size of explosion vessel.

理论部分：根据化学热力学、燃烧学和工程热力学的基础理论，从本质上定性地分析了爆炸极限的影响因素，包括温度、压力、爆炸容器的大小、点火能量大小、以及火焰传播方向等，得出了这些影响因素对爆炸极限的影响规律，以确保实验有完整的理论基础指导；在此基础上本文提出了一种新的推算在常温常压下可燃性纯质和混合工质制冷剂爆炸极限浓度的理论方法，该方法由可燃性气体的化学组成来推算上下限浓度，不需要其它条件；对混合工质制冷剂，只要再知道混合配比，即可以推算出爆炸极限，使预测爆炸极限的工作更简单、方便。

Digging the basic motives of heroines" behaviors from their psychodynamics can been seen as the depth which SiMaqian reached on heroines" psychodynamic exploration; the digging in true nature and character can be seen as the height SiMaqian reached on the height which is not in general meaning but in humanity.

对人行为动力的分析，也就是从本质上、本性上对人的探掘，因此，司马迁在这方面的分析，已不是普通意义上的人物心理的研究，而是上升到了传主人性的高度。这可以说司马迁在人物心理的探掘上所达到的高度。

And although the Group of Seven rich countries has largely been replaced by the Group of 20, which includes the systemically significant emerging markets, so far it has not distinguished itself. At the G20 meeting in Washington in November 2008 the global governance rhetoric rose to fever pitch.

尽管七国集团(G7)在很大程度上已被20国集团(G20)（其中包括具有系统重要性的新兴市场国家）取代，但迄今为止，两者本质上并无多大区别。2008年11月在华盛顿召开的G20会议上，人们狂热地谈论全球治理。

The reason "It is 5 o'clock on the Sun" cannot be explained as "It is the same time as it is when it is 5 o'clock on the Earth, only on the Sun" is that clock-timings carry essential reference to the Earth.

在太阳上5点"不能被解释为"这是和地球上5点一样的时间，只是是太阳上的，理由是'时钟时间'本质上是地球上的指称。

The former is thought to result in the abstraction;the latter makes the relation disappear.Secondly,put forward my ownunderstanding of this relation,which should be understood from double meaning:the relation between individual being and the essence of society;the relationbetween individual and the society as a whole.Thirdly,analyse its form inreality from the association of substance and function to prove that it is asymbiosis in which both side depend on each other and create each other.Fourthly,work out a conception of neo-collectivism and attempt to provefrom several aspects on the basis of the understanding of social departmentologyin the view of symbiosis.

本文所做的工作主要是：（1）分析了目前在个人与社会之关系问题上的两种错误理解，即实体化理解和功能化理解，认为前者导致问题的抽象化，后者则在实质上取消了问题本身；（2）提出对于个人与社会之关系的理解，应当在两重意义上予以综合把握：个人存在与其社会本质的关系，以及个人与社会整体的关系；（3）从主体与关系相结合的维度分析了个人与社会之关系的现实形式，即是二者之间互相依存、双向互塑的共生关系；（4）在对社会本位论做共生论理解之拓展了的视界中，提出新集体主义的构想，并从多个方面进行论证。

The expression of CD44 was strong positive in stratum intermedium at the bell of differetiational stage, bell of secretory stage, and bell of maturative stage of mouse tooth germ.

在钟状期CD44在口腔上皮、牙板上皮强阳性表达；外釉上皮、星网状层、成牙本质细胞弱阳性表达；分泌期的成釉细胞和牙囊阳性表达。

The human as reality is the ones as the being, namely the concreted human being and the real life of human being. The statement of "the human being created by labor" is that the essence of human being is its creativity as the existence of human and the objective itself.

人的本质……在其现实性上，它是一切社会关系的总和&的要点是&在其现实性上&，在现实性上存在的人就是作为存在者的人，就是具体的人、就是人的现实生活。&

With the methods of experimental comparison and mathematical statistics,this paper makes the comparison between Star teaching model and traditional model.The main purpose is to discuss the better teaching model with the comparison,analysis,and induction of statistical data in three tests.The results show that there are more validities and rationality of Star model in the aspects of the effect of study,quantification of teaching,comparative analysis.

经过文献资料的比较和分析，现代定向越野运动无论在技术教学的基本观点上还是在技术的外形和内涵上都有了新的变化和发展，但方法还是比较单一，且大部分采用的是定性分析方法，分析体能、技能的构成、比重时只着眼于整体，一定程度上不够确切，不能细化地作定量描述，因而，学生对技术的分析、认识也必然带有相对的模糊性，不可能从技术的本质上作深入的分析，进而有效地解决问题。

Siltation features downstream of a barrage built at the mouth of a tributary is mainly conditional on the alignment of the thalweg of the main river, and is essentially different from that in the main river estuary.

在潮汐河口支流口门上建闸，其闸下淤积面貌主要取决于干流主槽的位置，这与在潮汐河口干流上建闸的闸下淤积问题有着本质上的差异。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐