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Secondly, based on the different structure characteristics and additional conditions, we study several kinds of inverse problems of pseudoparabolic equations. One is a kind of pseudoparabolic inverse problem of identifying a constant coefficient solved by combining the formal solution of the problem and the additional condition properly. The second is the pseudoparabolic inverse problems of identifying an unknown boundary function and an unknown source term solved by using the Riemann function method to get the formal solution of the problem and then using the additional condition to transform the problem into a Volterra integral equation of the second kind. The third is a kind of backward heat flow problem of nonlinear pseudoparabolic equation solved by combining the Riemann function method and the fixed point theory properly.

其次，根据不同模型的结构特点和附加条件，研究了几类伪抛物型方程的反问题：一是利用问题的形式解并结合附加条件，解决了一类伪抛物型方程常数系数的反问题；二是利用Riemann函数方法获得问题的形式解，利用附加条件将问题转化成求解第二类Volterra积分方程问题，解决了一类伪抛物型方程未知边界值的反问题和未知源项的反问题；三是将Riemann函数方法和不动点定理相结合，解决了一类非线性伪抛物型方程的后向热流问题。

Cao Yushu total right to build wells at coal mine near a period of construction work to be fully affirmed the work of the next stage of requirements: First, be aware of Coal Mine Safety Elm Well the importance of pre-production and further enhance the sense of responsibility and sense of mission , we must bear in mind the "second pioneering" historical mission, to take more effective and more practical methods of work, the scientific arrangement of the work, carefully organize construction work, the remaining project duration inverted one by one to ensure that mine pre-production schedule; second, is necessary to study the construction process to solve difficulties and problems arise, focus on strengthening the soft rock supporting and construction process of research, trial and error comparison, mine worked out well for Elm soft rock supporting a new road.

曹总对榆树井煤矿筹建处近一时期的矿井建设工作予以了充分肯定，并对下一步的工作提出了要求：一是要认识榆树井煤矿安全试生产的重要意义，进一步增强责任感和使命感，要牢记肩负的"二次创业"历史使命，采取更加有效、更加务实的工作方法，科学安排各项工作，精心组织施工，对剩余工程逐项倒排工期，确保矿井按期试生产；二是要及时研究解决施工过程中出现的困难和问题，重点加强对软岩支护和施工工艺的研究，反复试验比较，摸索出适合榆树井煤矿软岩支护的新路子。

Salat is the second most important act of worship in Islam, after the shahadah and is often referred to as the second pillar of Islam.

萨拉特是第二个最重要的行为伊斯兰教礼拜后， shahadah ，并常常被称为第二个支柱伊斯兰教。

New Zhang told reporters:"Sambo Group quit mainly because they are so intelligent transport system, when the much-needed funds, and our second phase project construction period is longer, at the same time the new strategic investors in Singapore's second-largest real estate company Welcoming the light is willing to go in, and a more solid strength."

新章告诉记者："三宝集团退出，主要是因为他们是这样的智能运输系统，当急需的资金，以及我们的第二期项目建设期较长，同时新的战略新加坡第二大房地产公司的投资者欢迎光愿意进去，更坚实的力量。"

The first time , I sent a sampan to rescue you , you do not , I think you are worried about the risk sampan ; the second time , I sent a speedboat to go , you do not ; the second time , I am Ambassador of etiquette when you send a helicopter to rescue you , you are unwilling to accept the results .

第一次，我派了舢板来救你，你不要，我以为你担心舢板危险；第二次，我又派一只快艇去，你还是不要；第二次，我以国宾的礼仪待你，再派一架直升飞机来救你，结果你还是不愿意接受。

The first time, I sent a sampan to rescue you, you do not, I think you are worried about the risk sampan; the second time, I sent a speedboat to go, you do not ; the second time, I question your guests ritual, send a helicopter to rescue you, you are unwilling to accept the results.

第一次，我派了舢板来救你，你不要，我以为你担心舢板危险；第二次，我又派一只快艇去，你还是不要；第二次，我以国宾的礼仪待你，再派一架直升飞机来救你，结果你还是不愿意接受。

The results showed that there are 42 kinds of matters in health trunk, among which, the biggest relative mass fraction was santolina triene (16.04%), the second was α-fenchee (14.24%), and 43 kinds of matters were found from damaged trunk, the highest was β-pinene (18.07%), the second was α-pinene (12.39%).

结果表明：健康鱼鳞云杉干部挥发性物质共42种成分，其中相对质量分数最大的是神圣亚麻三烯(16.04%)，其次是α-葑烯(14.24%)；被害鱼鳞云杉干部挥发性物质共43种，其中相对质量分数最大的成分是β-蒎烯(18.07%)，其次是α-蒎烯(12.39%)。

In this article,we mainly study the space-like submanifolds with parallel mean curva-ture vector,constant scalar curvature or constant square length of the second fundamental form,respectively.We obtain some pinching theorems and rigidity results by estimating Laplace of the square length of the second fundamental form of the such submanifolds and using yaus maximum principle or Stokes Theorem.

本论文主要研究de Sitter空间中具有平行平均曲率向量、常数量曲率或第二基本形式模长平方是常数的三类类空子流形，并通过分别估计三种情形下子流形的第二基本形式模长平方的Laplace，利用Yau的极大值原理和Stokes定理，获得了这些子流形的一些拼挤定理和刚性定理。

The first phase array ofthe AS γ experiment began to run in June 1990. The first phase array thatconsists of 49 plastic scintillate detector has an angle resolution of 1°, atrigger rate of 20Hz and a threshold energy of about 10TeV. The second phasearray was finished on the base of the first phase array in 1994, and after that, apart of the second phase array was made high density.

一期阵列由49个塑料闪烁体探测器组成，探测阈能为10TeV左右，事例触发率为20Hz，角分辨率小于1°。1994年在一期阵列的基础上进行了扩建，扩建后阵列比一期阵列有效面积增大8倍，随后进行了部分加密，建成二期／加密阵列。

The Yankees could move their hard-hitting second baseman to third base. It is usually easier to find a new second baseman than a third baseman

洋基可以将他们强打的二垒手移到三垒，再找一个二垒手比找三垒手容易多了。

She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了，但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

要是在劳改农场，你等着挨绳子吧！