优势明显的

Among them 3 kinds of pattern are more familiar, it is mode of forum public relations, the small number of people gives out gigantic voice through occupying the platform such as forum, BBS by force, flooded popular true sound; 2 it is the network shoves a hand, prove through plan and lack but the operation with apparent directivity, the purpose; that achieves attack competitor or information to distribute searchs engine the 3rd kind namely, the search engine that holds market dominant position often screen inimical or the website that does not pay, put the content that with oneself interest positive closes in search result front row, one when intervene the practice that searchs a result made industry goes regular.

其中三种模式比较常见，一是论坛公关模式，少数人通过霸占论坛、BBS等平台发出巨大的声音，淹没了大众的真正声音；二是网络推手，通过策划以及缺乏论证但是指向性明显的操作，达到攻击竞争对手或信息散布的目的；第三种就是搜索引擎，占据市场优势的搜索引擎往往屏蔽不友善或不付钱的网站，并将与自己利益正相关的内容放在搜索结果前列，干预搜索结果的做法成为了业界的一条潜规则。

So it has made the great progress. The method studied in this research from o-Dichlorobenzene is a ideal route to synthesize 2,4- dichlorofluorobenzene, which has temperate condition easy to control,safe process,low cost and good quality of products; The method of Phase transfer catalysis fluorination without solvent is better than present technology in presence of DMSO as solvent in many aspects; In a word,it is worth being promoted by the domestic correlative factories.

本课题所研究的以邻二氯苯为原料的2，4-二氯氟苯合成路线反应条件温和，工艺容易控制，生产安全，而且产品质量好，是比较理想的合成路线；以季胺盐为催化剂的无溶剂相转移催化氟化法与溶剂法相比具有明显的优势；通过实验确定的工艺条件对工业化生产有重要的指导意义，可提高以邻二氯苯为原料的工艺路线的市场竞争力。

The present results showed that PHA-L anterogradely labeled fibers originating from the SRD traveled through the dorsolateral funiculus and mainly terminated at the ipsilateral laminae Ⅳ~Ⅶ and X of the cervical and thoracic cords, In addition, P...

SRD的下行投射终未在脊髓中具有明显的同侧分布优势，主要终止在同侧脊历灰质的Ⅳ～Ⅶ层和X层，Ⅰ、Ⅱ层中只有少量的标记终末，对侧脊髓灰质中除了在Ⅳ层和X层中有中等密度的颁标终末分布外，其余各层中几乎无标记终未、PHA－L顺标终未与BSI-B4标记的初级传入C纤维终末在Ⅰ。Ⅱ层内重叠公布。本研究为SRD在调控脊髓的伤害性信息传递方面也起重要作用这一论点提供了直接的形态学依据。

A highly diversified macrofossil assemblage was discovered from the Jiucheng Member of the uppermost Ediacaran of Jinning and Jiangchuan areas in eastern Yunnan. In addition to abundant Vendotaenia and Tyrasotaenia, large multicellular benthos such as Tawuia-like and Longfengshaniaceae fossils with diverse holdfast structures, have a distinct dominance, while there are still some other macrofossils with peculiar configurations as well as indistinct relatives. There is an obvious distinction between this assemblage and the macrofossil assemblages from the Doushantuo Formation and the Shibantan Member of the Dengying Formation in South China.

在中国云南东部晋宁、江川地区的埃迪卡拉系顶部灯影组旧城段，新发现了多样的宏体化石群，其中除了丰富的Vendotaenia与Tyrasotaenia类化石以外，以形体较大的Tawuia类和Longfengshaniaceae科等具固着构造的底栖多细胞藻类化石占据优势，另有一些形态奇特、亲缘关系不明的宏体化石，该组合与华南陡山沱组和灯影组石板滩段的宏体化石组合存在着明显的差别。

Results of this thesis indicate that the novel polymer DFB gratings fabricated via UV-photopolymerization can achieve high refractive index modulation and low surface relief. Since this method has obvious predominance over other fabricating methods, it is believed to have promising application future in the organic semiconductor lasers.

本论文的研究结果表明，基于紫外光聚合反应的新型聚合物光栅可以实现较高的折射率调制幅度，和很低的表面起伏深度，相比其它有机DFB光栅的制作方法具有明显的优势，因此在有机半导体激光器的制作中具有很好的应用前景。

Therefore,it is necessary to research diffusion equation for suspended sediment because it describes the sediment move process in the water body.The equation is a various coefficients second-order linear partial differential equa-tion,such equation under complex boundary condition is very difficult to get its analytical solution,while its numerical solution relative analytical solution is more easier and has the obvious superiority:simple,the computation convenience.but to get a kind of difference format which is good accuracy and stability is not easy.

泥沙扩散方程实际上是一个变系数的二阶线性偏微分方程，这样的方程在各种复杂边界条件下求解是十分困难的，求它的解析解在数学上存在着难以克服的障碍，无法求出其精确解，因此常用数值方法求它的近似解，相比较而言，数值方法有着明显的优势：即简单灵活、计算方便快捷，但要寻找一种精度高、稳定性好、计算方便的差分格式也并非易事。

The great tour purchasing power is the drive power of promoting the region's tourism developmentln the regional space, scale economic and regional separation are one of the basic characteristics of promoting tourism industry, So we must arrange the regional tourism industry with a systematic method and give prominence to the central city. For its outstanding area in the regional space, central city has evident superiority in the regional ecnomic development, and has echelon between central city and its periphery scennic spots, which is the inducement mechanism of tourism industry's arranging, developing and advancing step by step. For the law of diminishing marginal utility and the theory of equilibrium, the max utility equilibrium of tourism consumption be at the point of tangency of undiscrepancy curve and the cost budget curve.

中心城市居民巨大的出游力是拉动其周边旅游地发展重要的内在驱动力；由于地缘关系，区域规模经济与地域分割并存，是旅游产业运动的一个基本特征，为此必须对区域旅游经济进行系统化布局，突出中心城市的产业中心性；因其区位条件独特，中心城市在区域经济发展中居于明显的优势，与周边城乡部位存在经济发展上的梯次性，这种梯次性是区域旅游生产力布局、产业发展梯次传动，最终整体联动的经济诱导机制；根据边际效用递减规律和旅游者最大效用均衡理论，旅游消费效用最大化的均衡在无差异曲线与开支预算线的切点(即旅游目的地选择的最佳位置)上，且随着边际效用递减，目的地选择的最佳位置向远离中心城市方向移动，这就是中心城市与周边旅游地互动关系的经济学解释。

Therefore it's necessary to contol the concentration of TW80 to use it in the remediation of pyrene contaminated soil by AMF and corn integrated systerm.4. The AMF community and the single species derived from rock oil-contaminated soil all can be combined with corn and promote the remidation of pyrene contaminated soil , the original AMF community has obvious advantages and behave best.The residual pyrene concentration of soil in the treatments with the mixed AMF community M4 (Glomus intraradices, Glomus mosseae, Glomus etunicatum and Acaulospora tuberculata) and corn integrated systerm got 0.12mg/kg,0.54mg/kg and 3.92mg/kg respectively in 1mg/kg, 10mg/kg and 50 mg/kg pyrene treatments,decreased 32.6%,58.6% and 42.2% respectively than that of the treatment of M1,decreased 28.1%,59.9% and 36.6% than that of M2(G.intradices), decreased 2.7%,55% and 23.5% than that of M3 (G.intradices + G.mossea).5.Large scale reproduce overall of AMF community which coming from rud oil-contaminated soil in the absence of the original conditions will change the quantiy,composition and structure of the AMF population and may has negative impact on it's function in the remedition of soil pyrene contamination.

因此，在植物与AMF联合修复土壤芘污染中使用TW80应该注意控制TW80的浓度。4、从石油污染土壤中扩繁出的AMF混合菌群及其中的单一菌种与玉米联合均能促进土壤芘污染的修复，原始混合菌群具有明显的种群优势，其与玉米联合修复土壤芘污染的效果最佳。1mg/kg、10mg/kg和50mg/kg芘处理土壤中，玉米接种混合菌种M4(Glomus intraradices， Glomus mosseae， Glomus etunicatum和Arcaulospora tuberculata)处理土壤的芘残留浓度分别为0.12mg/kg，0.54mg/kg和3.92mg/kg，分别比接种单一菌种M1处理降低了32.6%，58.6%和42.2%，比接种单一菌种M2(G.intradices)处理降低了28.1%，59.9%和36.6%，比接种复合菌种M3(G.intradices+G.mossea)处理降低了2.7%，55%和23.5%。5、从石油污染土壤中扩繁出的混合AMF菌群在无原始条件下的整体扩繁会改变菌群的组成及其结构，并会对菌群与玉米联合修复土壤芘污染的功能产生不利影响。

In this paper, an important pest of cruciferous vegetables xylostella and its two dominant species in the parasitic wasp - Cotesia plutellae bee, Diadegma semi-closed two parasitic system studied two parasitic wasps of Nutritional regulation of the host Plutella xylostella, from parasitic to parasitic found after the fifth day, five days, all groups the body weight of diamondback moth larvae are showing an increasing trend, not parasitic larvae of the diamondback moth has been higher than was body weight parasitic larvae of Plutella xylostella, and was Ichneumonidae parasitic larvae of the diamondback moth important than being clear Braconidae parasitic weight of the diamondback moth larvae.

本文以重要的十字花科蔬菜害虫小菜蛾及其两种优势种内寄生蜂——菜蛾盘绒茧蜂、半闭弯尾姬蜂两个寄生体系为研究对象，研究了两种寄生蜂对寄主小菜蛾营养的调控，发现从寄生至寄生后的第五天，五天时间内，所有组小菜蛾幼虫的体重均是呈现增加的趋势，未被寄生的小菜蛾幼虫体重一直保持大于被寄生小菜蛾幼虫，而且被姬蜂寄生的小菜蛾幼虫体重要明显的大于被茧蜂寄生的小菜蛾幼虫体重。

It is a period where composers still working in the Baroque style were still successful, if sometimes thought of as being more of the past than the present-Bach, Handel and Telemann all composed well beyond the point at which the homophonic style is clearly in the ascendant.

虽然有些时候考虑到跟与当前相比更多的是以前的巴赫、亨德尔和泰勒曼，这些作曲家在和声风格上完全相反的风格更具有明显的优势，但这段时期依然在创作巴洛克风格音乐的作曲家们仍然很成功。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。