The continental orogenesis is characterized with the following features , such as sudden start , global synchronicity and horizontal movement , occurring mainly in the upper part of the crust and weakening with depth , and so on 摘要大陆皱造山运动具有突发性、全球同步性，以水平运动为主，主要表现在地壳上部且具有上强下弱等特征，除水平运动一项外，与基于地幔对流的板块构造理论缺少共同之处。
The approximate analytical solution of melting process within a spherical enclosure is to presented by contacting heat transfer . a numerical model describing the melting process is presented by considering the difference of the solid - liquid density and natural convection 在所建立的模型中考虑了固相与液相的密度差和自然对流的影响，得出了各个时刻液膜厚度的分布、融化速率和传熟量等计算结果。
Therefore a natural modeling of indoor air convection is to analyze the interaction between all the possible physical processes . the basic characteristics of indoor air convection are then determined by the prevailing physical process 因此，模拟室内空气对流传热传质系统最自然的方法是分析室内可能发生的各种物理过程之间的相互作用，而在相互作用中明显占优的物理过程将决定室内对流的基本特性。
We should attach more importance to following channels at present time : broaden monetary market function ; perfect stock mortgage loan ; develop investment institute ; explore investment banking business , including investment funds business channel , insurance business channel and security business channel ; make financial organization renovation . following policy suggestions should be applied : 1 ) perfect the policy environment ; 2 ) treat the problem rationally ; 3 ) implement financial mixed operation system in due time ; 4 ) foster financial market ; 5 ) enhance external supervision ; 6 ) deepen the construction of commercial banks ; 7 ) introduce bank capital into stock market in stages 货币市场和资本市场的不协调发展使证券机构出现制度外与体制外融资或违规操作，必须在两个市场间建立资金和信息对流的宽敞通道，在路径设计上，当前应扩展同业拆借市场、国债回购市场等货币市场渠道功能;完善股票质押贷款，及时推出非券商股票质押贷款，并注重风险防范;大力发展养老基金、保险公司、信托基金等机构投资者，吸收银行资金间接入市;拓展投资银行业务，包括基金、保险业务渠道、券商业务渠道、公司业务渠道;设立证券金融公司或金融控股集团，进行组织制度创新。
3 . algebraically explicit analytical solutions of two - buoyancy natural convection in porous media applying the approach of separating variables with addition , the thesis derives three sets of simple and clear algebraically explicit analytical equations describing the natural convection in porous media with both temperature and concentration gradients . besides the theoretical meaning , they are more valuable for be the benchmark solutions to check and improve the computational fluid dynamics and computational heat and mass transfer 三、多孔介质中温度与浓度梯度耦合自然对流基本方程的代数显式解析解本论文对王补宣院士等给出的反映多孔介质中温度与浓度耦合自然对流的五元非线性联立偏微分方程，利用加法分离变量法，导出了三套比较简明的代数显式解析解。
These mean images reveal not only the synoptic cloud systems but also the mesoscale convective cloud cluster . the long - term high water level of mid - yangtze river and the frequent flood peak of the upper yangtze river from the middle of june to the middle of august in 1998 was caused by the high frequent activity of convection 旬月和季平均云图表明，长江上游从6月中旬开始到8月中旬长达两个多月对流的频繁发生是“ 98洪水”长江上游洪峰多，中游高水位维持时间长的重要原因。
The value of inlet gas velocity decreases and the reductive effectiveness of the mc increases when only decreasing the value of channel width . by changing the marangoni number alone , we found that the less the marangoni number , the less the needed inlet gas velocity and the better the reductive effectiveness of the mc 随着的增大，要想达到热毛细对流的最佳抑制，所需要的气流冲刷速度反而越小；但抑制程度随着值的增大有一个先增加再减小的过程，当为2时抑制程度达到最佳。
The third part is the analysis to uprightness instability condition . it is made that there was the ascending air current about shenyang , the hailstone forming height is between 700hpa and 400hpa , die water vapor coagulating height is between 950hpa and 900hpa from the simulated tlogp evolvement chart . cape is in favor of severe convection development 干湿空气间强的风垂直切变是此次冰雹强对流爆发的又一个重要触发机制，强冷空气到达地面强迫暖湿空气抬升，致使对流层中低层出现强风垂直切变，强风垂直切变对强对流的发生和发展起到了非常重要的作用。
The results show that there are two centers of occurrence of llsw respectively in dong bei and jiang nan ; the regional torrential rain over the yangtze river basin is closely associated with llsw during the major periods of heavy rainfall ; the diurnal variation of the number of occurrence in the middle and low reaches of the yangtze river is the strongest in china there are some significant differences between llj and nallsw in positive season , spatial variation , diurnal variation and field of pressure . by the way , the important effect of inertial stability on heavy rainfall with both low level south - westerly jet and high level northerly strong flow is analyzed theoretically . the results show that the existence of the maximum of inertial stability in the left font of the low level jet is favor of the accumulation of the moist thermal energy , and conditional symmetric instability or convective instability can be expected in this region 另外，惯性稳定性的作用以往不受重视，本文通过对西南低空急流左前方和高空偏北大风轴右后方的惯性稳定性和对称稳定性的理论分析和实例计算，表明惯性稳定性在伴有高低空急流的暴雨中有重要意义，揭示了梅雨暴雨的一种新的高低空急流耦合机制：低空急流左前方惯性稳定度大值区的存在，有利于低层湿热能量的积累，使低层倾斜对流的不稳定发展更多期望于条件性对称不稳定或对流不稳定；高空偏北大风轴(西风急流)的存在，是其右后方(右侧)出现对称不稳定的有利条件，高空相对容易出现干对称不稳定；惯性稳定性的作用，使低层的倾斜对流更偏向于垂直方向，有利于对流发展，使高层的倾斜对流更偏向于水平方向，有利于高层辐散。
In this paper , aggas2 polycrystal was synthesized by two - zone vapor - transport ing and temperature - oscillating method ( tvtm ) with high pure elements silver ( ag ) , gallium ( ga ) , and sulfur ( s ) . in the synthetic procedure , s vapor was transported from lower temperature zone to the higher where s reacted with ag and ga to get aggas2 , and then aggas2 was temperature - oscillated many times between 1060 ? and 900 ? . by tvtm , it made the ampoule less crack rate and the material much better 本论文用银( ag ) 、镓( ga ) 、硫( s )三种高纯单质元素，采用一种新的合成工艺路线? ?二温区气相输运温度振荡法，从低温区以热对流的方式输运硫蒸汽到高温区与银和镓反应生成aggas _ 2 ，降低了合成安瓿爆炸几率；并在熔点附近快速温度振荡从而提高多晶质量。
