等分布

But due to the difficulties of the theoretical calculation and the limitation of the technique of image display, only some two-dimensional graphs of electromagnetic field of a planar set of point charges or symmetrically and uniformly charged bodies, which ignores the boundary effect, are introduced in the present electromagnetics teaching materials.

然而，由于受理论计算和图象显示技术等因素的限制，目前的电磁学教材中，通常只能给出平面分布的点电荷系或具有较强对称性、忽略边界效应的带电体的电力线和等势线的二维平面图。

From late 1970s,Chinese technological staff began to do deep research on the issue of population control and achieved a lot of researching results at three levels: population database , technology and soft ware of population analysis, the informational system of population management, the surporting system of population strategy and population forecast and software are at practical research level; the system control theory of nonlinear population distribution parameter in this article is of basic research.

从七十年代末，我国科学技术工作者开始对我国人口控制问题进行了深入的研究，分别从三个层面取得了许多研究成果：人口数据库、人口分析技术和软件、人口管理信息系统、人口决策支持系统、人口预测和软件等，属于应用研究层面；人口系统论和人口控制论等属于应用基础研究层面；而本文的非线性人口分布参数系统控制理论，则属于基础研究。

Rb-Sr isochron age of porphyroid fine granite most closely related with molybdenum mineralize is 154Ma,K-Ar isochron age is 152Ma.

研究表明，分布广泛的似斑状中粗粒花岗岩K—Ar年龄为219—188Ma，与钼矿化有密切关系的似斑状细粒花岗岩Rb—Sr等时线年龄为154Ma，K—Ar等时线年龄为152Ma。

In the process of simulation, the thesis also considers the module both sides potsherd part (there are no related reports in domestic and foreign), uses methods of finite difference and iteration to obtain the temperature field distribution and electricity generation performance quantitative relations under certain working condition.

在数值模拟过程中，本文把模块两端的陶瓷片部分亦考虑进去(这在国内外文献上尚无此方面的相关报道)，采用有限差分及迭代等方法，得到了一定工作条件下，模块的温度场分布和发电性能等诸多内在的数量关系。

The results show that the samples are of calc-alkaline series, the primitive mantle normalized trace element patterns are characterized by relative enrichment in large ion lithophile elements and depletion in high field strength elements (Nb, Ta, Ti, P etc.). REE patterns are of slightly right inclined type with unobvious Eu anomaly.

分析得出样品为钙碱性；原始地幔标准化微量元素分布型式显示相对富集大离子亲石元素K、Rb等，亏损高场强元素Nb、Ta、Ti、P等；稀土元素具有略向右倾的配分型式，且铕异常不明显，显示其具有与消减作用有关的岛弧火成岩的特征。

According to gathering plentiful relative datum of of Xuer section of Yazihe structure and seismic、 well logging、 surveys、 core ect during the exploitation and exploration,the research starts with analise of slice data、 core observation and core specimens,then combines with coordination、 analyse、 concluding and the former research result.The article recognizes the tectonic feature of Xuer section of Yazihe structure and it"s tectonic evolution,analyzes the distributing feature of oik、 gas、 water、 their dominated factor、 the pressure feature of gas reservoir and especially the conservative condition of Xuer gas reservoir.At the same time,the article acquaintances the depositional feature and sedimentary environment and discusses the main genesis typeof reservoir sandstone.By analyzing the physical feature and physical relation of reservoir rock, the article first classifies and evaluates the reservoir rock simply ,then concludes it"s feature of reservoir and permeability. According to detailed core observation and fracture explanation in well logging ,the article uses single well fracture indentifying and evaluation to confirm the section where the fracture growths,putting emphases on the method to get parameter of fracture,such as fracture width and fracture porosity.Finally,combining with the principal curvature for tectonics deformation the article predicts the plane fracture of reservoir and weave the general evaluation map of crack fracture growth.

本文主要是通过大量、全面地收集鸭子河构造须二储层及气藏在油气勘探和开发过程中取得的地震、录井、测试、岩心及开采等方面的相关资料，从薄片资料、现场岩心观察和岩心样品分析资料入手，通过室内整理、分析、归纳，并结合前人的研究成果，认识鸭子河构造须二段的构造特征并分析构造的演化，浅析其油、气、水的分布特征及控制因素，气藏压力特征、重点分析须二气藏的保存条件；了解储层的沉积特征和沉积环境，从多方面讨论储层砂体的主要成因类型；分析储层的物性特征及物性间关系，并对储集岩进行简单的分类评价，归纳其储渗特征；通过详细岩心观察和测井裂缝解释，进行单井裂缝识别与评价，来确定裂缝发育层段，重点放在裂缝参数的求取，如裂缝宽度、裂缝孔隙度等，并结合构造曲率法进行储层平面裂缝的预测，编制裂缝发育综合评价图。

Piglet spore ball worm disease depend on by pig spore ball worm for a living in nursing period and wean piglet leather cell one parasitics protozoon's disease caused at the small intestine recently, present world distribution, cause the serious economic losses to pig farm .

仔猪等孢球虫病是由猪等孢球虫寄生在哺乳期及新近断奶仔猪小肠上皮细胞所引起的一种寄生性原虫病，呈世界性分布，给养猪场造成严重的经济损失。

Food microbiology covers the following topics: the distribution and zoology of pathogenic microorganism and the microbe that can cause putrescence of different foods, the theory and methods of restricting their growth and preserving food, their application in food fermentation, detected and identifiedmothods, the quality assure system and related technology, such as HACCP, hurdle technology and the standard developed by International Commission of Microbiological Specializations on Food .

课程简介：食品微生物学主要是讨论介绍各类食物中常发现的腐败与病原性微生物的分布与生态特征，及为限制其繁殖而形成的各种食品保藏方法及其原理；微生物在食品发酵中的应用及发酵原理；现代微生物检测和鉴定方法；讨论HACCP、栅栏技术及国际食品微生物标准委员会等制订的食品微生物标准等质量保证体系和方法。

The conclusion can be drawn that many kinds of Lactic acid bacteria have been found in milk and dairy products in different areas, that some strains have properties of the good adaptation to temperature and pH living medium, and that other strains have the properties of using melezitose, melibiose and raffinose and so on.

研究表明：内蒙古牧区乳及乳制品中乳酸菌的种类多、分布广；有些菌株对温度和pH值等环境条件的适应性强；有些菌株还有较强发酵利用松三糖、蜜二糖、棉子糖等糖的能力。

Thus when random fluctuations result in a deviation of the allele frequency between the parent and offspring generations, that deviation establishes new expected values for the allele distributions in the next generation to follow.

因此，当随机波动导致父母和子代之间产生等位基因频率出现偏差，这种偏差为紧接着的下一代的等位基因分布建立了新的预期值。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。