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Seven thirdorder seismic sequences can be recognized from bottom to top in the Paleogene in the Wushi sag, which consist of a depositional sequence from transgression to regression as a whole and correspond to different stages of structural evolution. Sequences developed in different stages of structural evolution are different in filling sequence and distribution of sedimentary system. Multiphase structural evolutions result in development of source rocks and reservoir and cap rocks in various parts of the sag. The sequence 2-4 deposited in strong chasmic stage have the best source rocks and sealing conditions as well as various favorable reservoirs, thus are the most favorable targets for obtaining discoveries in this sag.

结果认为：乌石凹陷古近系从下至上可以划分为7个三级地震层序，整体上为一个水进到水退的序列，分别对应不同的构造演化阶段；不同构造演化阶段发育的层序具有不同的充填序列和沉积体系分布；构造演化的多期性使得该凹陷多个部位都有烃源岩和储、盖层发育；其中以强烈裂陷阶段沉积的层序2-层序4中发育的烃源岩和盖层条件为最好且发育多种有利储集体，是该凹陷寻找油气藏的最有利层段。

The biomarkers such as the n-Alkanes, the isoprenoids, the terpane, and cholestane were detected through GC-MS analysis. Based on the study of the biomarkers, the biological evolution during Permian and Triassic can be divided as three stages, namely, the mixing source stage of low biota such as thallose and advanced plant in late Permian (below bed 63), the stage of low biota such as thallose in the boundary transitional layer (bed 63-69) and the mixing source stage of advanced plant and low biota such as thallose in early Triassic (above bed 69). What's more, the second stage near the boundary transitional layer can be subdivided into 4 stages. The stages of biota evolution is close related with sedimentary environment changing and the boundary transitional layer.

利用GC—MS分析技术，在陆相地层中检测出正构烷烃、类异戊二烯烷烃、萜烷和甾烷类生物标志化合物并根据生物标志化合物和特征值研究，将二叠系—三叠系生物演化划分为三个大的阶段，即晚二叠世的菌藻类低等生物与高等植物混源阶段（63层以下），界线异常层的菌藻类低等生物阶段（63-69层）和早三叠世高等植物与菌藻类低等生物混源阶段（69层以上），界线附近异常层的第二阶段又进一步细分为4个次一级阶段，生物演化阶段与沉积环境变化及界线异常层具有非常密切关系。

Comparing the SXR and microwave data with the optical data leads to the following scenario: the corona has been already heated to some extent before flare onset, and in the first two minutes of the impulsive phase, heat conduction was the main source or, at least, a competitive source, for chromospheric heating.

把软X射线和微波资料与光学资料比较研究，我们得到如下图象：在耀斑触发前，日冕已经加热到一定程度；在脉冲相的前两分钟里，热传导是色球加热的主要的或至少是极富竞争力的机制。

On the other hand, through the discussion on coronal density of flares, we found that the column mass density at the top of chromospheric flare model can not be represented the total mass above the chromosphere and the coronal density can be estimated from presure balance based on semiempirical model. Through estimations, the results show that the total mass above the chromosphere is about the same as the mass between the top of chromosphere and electron source, which so give an evidence that the source of electrons is situated at the top of flare loop.

另一方面，通过对日冕物质密度的讨论发现，半经验模型中色球顶部柱数密度不能用来代表耀斑环在日冕内的总物质，日冕物质密度可用日冕气压与半经验模型中色球顶部压力近似相等来进行估计，进而发现耀斑环在日冕内的总物质与前面估计的色球顶部到非热电子源之间的总物质近似相等，结果趋向于支持非热电子源位于环的顶部。

By comparison between SMM HXRBS observation and ground observation of Hα and CaIIK lines, especially through the combined study between SMM HXRBS observation and chromospheric flare models, the results show that: in the initial stage of impulsive phase, there is a correlative relation betweem Hα line intensity and hard X-ray emission; different spike in hard X-ray flux curve represents the burst at different location; the energy taken by non-thermal electron beam is larger than the radiative loss in chromosphere; for the flare studied here, the chromospheric evapporation is explosive; if the chromosphere is in balance between electron beam bombardment and radiative loss, the column mass density at the top of chromospheric flare model can not be taken as measure from the source of electrons and then the total material between the source of electrons and the top of chromosphere can be estimated.

通过一个具体耀斑的SMM HXRBS观测结果与同时基于地面得到的Hα和CaⅡK可见光谱观测结果对比，特别是将硬x谱观测结果与色球半经验模型联立研究，结果显示出：在脉冲相上升段，硬x发射与Hα辐射之间存在对应关系；硬x线光变曲线中不同脉冲爆发分量不太可能起源于同一位置；硬x辐射所反映的高能非热电子总携带能量大于色球总辐射损失；对所研究的耀斑而言，其色球蒸发过程是爆发性的；在详细比较了非热电子色球总沉积和色球辐射损失的基础上，指出半经验模型中色球顶部柱数密度不能看成是从非热电子源度量的，从而估计了色球顶部到非热电子源之间的总物质。

Then the voltage source type matrix converter mathematics model is established each in 3-phase static and circumrotate coordinate system, moreover by open-loop simulation, the simulation results show that the voltage source type matrix converter can realize the frequency range very broad sine wave input-output, moreover by regulating circuit parameter, the power factor in input side reaches 1 approximately, realization static VAR compensator function.

然后分别建立了电压源型矩阵变换器在三相坐标系和旋转坐标系下的数学模型，并且对电压源型矩阵变换器进行开环仿真，仿真的结果表明电压源型矩阵变换器能够实现频率范围很广的正弦波输入输出，而且通过调整电路参数使得输入侧的功率因数约为1，实现静止无功补偿器的功能。

The schools history department recently adopted a policythatsays its OK to consult the popular online encyclopedia, butthatit cant be cited as an authoritative source by students.Thepolicy says, in part, Wikipedia is not an acceptablecitation,even though it may lead one to a citable source.

据美联社2月13日报道，该系最近颁布施行的一项政策规定，学生们在那些流行的在线百科全书上寻找参考资料的做法是无可厚非的，但他们不应当把那些材料做为具有权威性的说法来加以引用，&尽管维基百科可能会给你提供一些有参考价值的材料，但至少从一定程度上来说，直接引用那上面的东西仍然是一种令人无法接受的行为&。

This article first introduced designs the high efficiency cocurrent voltage-stabilized source's composition structure and the control principle, and on the power source main circuit, the control circuit, the protection circuit as well as the control system software's design did have analyzed in detail.

本文首先介绍了所设计的大功率直流稳压电源的组成结构和控制原理，并就电源主电路、控制电路、保护电路以及控制系统软件的设计做了详细地分析。

This article first introduced designs the high efficiency cocurrent voltage-stabilized source's composition structure and the control principle, and on the power source main circuit, the control circuit, the protection circuit as well as the control system software's design did have analyzed in detail.

但是，上述这些新型功率开关器件也存在一些弱点，如电压与电流的过载能力弱，当工作参数超过其安全范围是，非常容易损坏。因此给电路结构的设计与制造提出了新的要求，并且需要快速而有效的保护措施

According to a posterior source the rebuilding of the Church in Bethlehem is attributed to this emperor. This same source says that the Emperor himself was not "satisfied" with the job carried out by his architects who had pulled the Constantinian church down, damaged during the Samaritan uprising, and built in its place a new one. The Emperor found that this new church was "dark" and he even accused the architect of wasting the Empire's money. So much was his dissatisfaction that the architect was executed!

根据幕后消息指出白冷的教堂因为这个皇帝而重建，同一消息指出，皇帝本身并不满意他的建筑师在拆掉叛乱中受损的 Constantinian 教堂，而在原址上新建的那一座，他发现新教堂「黑暗」并指责建筑师浪费帝国公款，如此的不满意之下，他处决了那位建筑师！

Many will continue to choose to live in duality and in conflict.

许多人将继续选择活在二元对立性和冲突中。

I find that students of the University of Physical Education all wear sportswear at first sight.

我发现：体育大学的学生乍一看，都是穿运动衣，大家都一样