有...条件

4DRG was co-culture with sciatic nerve segment in 10鸖 DMEM;the axons were longer and surround the sciatic nerve segment which was regard as anew evidence for chemotropism.

结果：(1)在无血清条件下单独培养的DRG，背根神经节的轴突数目众多，外形纤细弯曲，不成束，并且施万细胞和成纤维细胞稀少，所以可以排除两者对轴突生长的影响，为观察来源于变性坐骨神经段的可溶性因子对轴突生长的作用提供了有利条件；(2)在无血清条件下DRG和变性坐骨神经段联合培养，①先单独培养DRG，4天后待神经元轴突长出，再与坐骨神经段联合培养，观察到神经元的轴突数目减少，外形挺直，部分轴突之间相互粘附成束；②变性坐骨神经段和DRG同时联合培养，神经元的轴突数目明显减少，外形粗壮，轴突之间相互粘附成束；(3)有血清条件下单独培养DRG，轴突数目较多，外形挺直，长短不一，部分神经元的轴突之间相互粘附，施万细胞和成纤维细胞数目众多，观察到的轴突生长情况受到施万细胞和成纤维细胞的直接或者间接的影响。

The difference schema of the initial boundary value problem was converted to the step-by-step form,which was similar to the difference schema of the initial value problem.It is concluded that the difference schema satisfying the Von Neumann condition is a stable schema,and that,under the consistency condition,such stable schema is convergent.Moreover,with error estimate expression for the difference approximation to the classical solution,the linearity condition is unnecessary.

引入反投影算子将发展方程初边值问题的差分格式转化为与初值问题差分格式类似的逐步推进的形式，从而得出：满足Von Neumann条件的差分格式是稳定的格式；在相容条件下，差分格式若稳定(或满足VonNeumann条件)则格式收敛，且对古典解的差分逼近有误差估计式，不再需要线性的条件。

Changes on the shape of the statolith were observed among different incubated conditions. The shape of the statolith at hatching had obvious differences among different embryonic developmental conditions. The statolith developed in the colder environment had smaller dorsal dome, thinner and shorter rostrum than that developed in the warmer condition.

不同条件下培养的幼体在其平衡石的型态上有所差异，其型态上的变化随著培养的条件而有显著的改变，在较冷的条件下培养的个体拥有较短小的钝端比例之平衡石，而在较高温条件下培养的个体则是拥有较长比例钝端的平衡石。

The decomposition rate of organic matter in submersed is obviously larger than that of organic matter unsubmersed after input of nitrogen,suggesting hy...

在非淹水条件下，氮素输入后有机物质的分解速率明显大于淹水条件，说明水文条件和氮素输入对枯落物的分解过程都有重要的影响，只是在不同环境条件下的响应存在一定的差异。

In the part of empirical analysis of Chinese IPO first-day return, the difference between existing study and this study is that we use principal components analysis to extract from five factors to construct investors'sentiment index, add it to controled varibles, on which we examine the influence of offering mechanism on IPO first-day return. Moreover, we gather statistics and compare the IPO holding return for lockup period between fixed-price-class offering method and bookbuilding-class offering method, as well as price range between Chinese A-share market and Hongkong stock market, which prvide comprehensive evidence to appraise Chinese IPO bookbuilding mechanism. 2. Compare to the existing literatures which consider discount or allocation, incentive allocation and discount are considered at the same time in optimal mechanism design in this dissertation, and the offering bottom price is introduced to the price range. We investigate the relationship between price range and allocation quantity, and obtain the optimal price range and allocation strategy so that the advantages of independent allocation are reflected. On the other hand, the disadvantages of independent allocation are reflected in the manipulation in case of no restriction on IPO allocation. To distinguish from the existing literatures, bookbuilding mechanism is introduced to the model. We study the allocation strategy adopted by the underwriter in the pooling equilibrium of manipulation. In addition, we analyze the incentive compatibility conditions to which the existence of pooling equilibrium should satisfy and examine some factors'impact on the existence of manipulation.3. In bookbuilding without independent IPO allocation, Chinese realistic IPO background is considered and the condition of bookbuilding and fixed-price hybrid offering is added. Divide bookbuilding and fixed-price hybrid offering into sequential hybrid and simultaneous hybrid, and point out that the key points of subscription strategy in the two kinds of hybrid are different. Through modeling and simulation we obtain the impact of institutional investors'subscription strategy on bookbuilding without independent IPO allocation, which fill the gap in related research. Moreover, in the part of IPO bookbuilding with over-allotment option, the pricing strategy is divided into hot-IPO strategy and weak-IPO strategy. Take into account the procedure of Chinese IPO with over-allotment option, it presents how the underwriter determines the pricing strategy and what effect it brings to offering price and issue size through modeling and simulation. Therefore, it is instructive as a complement to existing literatures.

此外，对我国A股市场询价发行方式与固定价格发行方式下的IPO锁定期到期时持有收益率、以及我国A股市场与香港市场的询价发行价格区间进行了统计比较，为评价我国IPO市场的询价发行提供了比较全面的依据。2、相比已有文献仅考虑折价和分配中的一种激励措施，本论文在有自主配售权下的机制设计中并用了分配与折价两种激励措施，并且在价格区间的制定中引入发行底价，考察了价格区间与分配量之间的关系，得到最优的价格区间和分配策略，从中体现自主分配权的优点；在有自主分配权下的操纵行为研究中则体现了自主配售权的弊端，与已有文献不同的是，在模型中引入了累计投标询价机制，研究了承销商在混同均衡操纵中采取的分配策略，并对操纵存在的条件进行分析讨论，得出各个因素对混同均衡操纵存在的影响。3、在无自主分配权下的询价发行中，充分考虑了我国实际应用的背景，加入了与固定价格发售混合的条件，并将询价与固定价格混合发行分为序贯与同步两种方式，指出机构投资者在两种情况下申购策略的侧重点各有不同，通过对序贯混合发行方式下的网下累计投标策略以及同步混合发行方式下的资金分配策略的模型建立和数值仿真，考察了机构投资者申购策略对无自主分配权下的询价发行的影响，填补了相关研究文献的空白；在包含超额配售选择权的询价发行中，将发行定价策略分为热销策略和弱销策略，在考虑了我国含超额配售选择权的发行流程下，通过建模以及数值仿真得出承销商会对发行定价策略作出怎样的选取，进而会对新股发行价格、发售数量产生怎样的影响，对目前相关研究的缺乏做出了有益的补充。

The standard of tourism exploitation falls into three categories: the touristic resources factors, market factors and competitive factors of touristic products, which are all essential.

旅游业的开发和定位的标准，主要有三个条件，即旅游资源条件、客源市场条件及旅游产品的竞争条件，三者缺一不可。

Based on the integral hydraulic model test of SHANGHAI CHANGQIAO waterwork s water-transport pumping station,some research on the hydraulic characteristics of the pressurized forbay has been done in the paper.

本文基于上海长桥自来水厂改造工程送水泵站整体水力模型试验，对有压前池的水力特性进行了研究，研究的主要内容如下： 1、无导流措施的有压前池在不同供水组合及不同机组开机组合条件下的水力特性，并分析了流态较差的原因； 2、加设导流墩后有压前池的水力特性，以及加设导流墩流态改善的原因； 3、有压前池进气临界条件的试验研究； 4、水泵进气以后水泵性能的讨论。

Hypothetical conditions, marked in English by the backshift of verbs , receive regular treatmentin English grammar.

任何一部英语语法里都有专门的章节阐述假设条件句，因为假设条件句要求动词时态后移然而在汉语语法书里，或者根本不提假设条件这一问题，或者仅仅举例说明有的条件句表达的是与已知事实相反的&纯假设&。

This paper will assume that there are effective stock market and effective executive market, and the basic hypothesises in Black-Scholes Stock Options Pricing Model are correct. We will discuss the optimal repricing scheme under three situations, one is that the board of the company considers repricing when the price declines straightly ; the second is at the beginning of stock life,the board promises to reprice under some conditions at a certain coming time; the third is when some condition happens at an uncertain coming time, the board promises to reprice the ESO.

本文在有有效的股票市场，也有有效的经理人市场，Black-Scholes期权定价模型中的基本假设是正确的条件下，分别讨论了公司的董事会在股价持续下跌时考虑重新定价、在授予经理人期权的时候就承诺在未来某一确定时刻一定条件下可以进行重新定价和未来不确定时刻一定条件下可以进行重新定价三种情况下的最优重新定价问题。

The tendency of voluntarism was a philosophical basis of the Great Leap Forward Movement at the end of the 1950's, which embodied as excessively exaggeration on irrational factors such as will and emotion, and it based on four areas, that is, take big breakings of the condition constraint, regard suppositional condition as true condition, replace condition theory with advantageous institution theory, and misuse analogism.

唯意志论倾向是20世纪50年代末中国大地上掀起的大跃进运动的哲学依据；大跃进时期唯意志论倾向体现为当时人们对主体意志、情感等非理性因素的大肆喧染；大跃进时期的唯意志论倾向的形成有四方面的根据：即大破条件论，把虚拟条件当作真实条件，以制度优越论代替条件论，误用类比推理。

The labia have now been sutured together almost completely.The drains and the Foley catheter come out at the top.

此刻阴唇已经几乎完全的缝在一起了，排除多余淤血体液的管子和Foley导管从顶端冒出来。

To get the business done, I suggest we split the difference in price.

为了做成这笔生意，我建议我们在价格上大家各让一半。