已知的

In this paper we assume the expected returns of the risky and risk-free assets as well as the covariance matrix of the risky assets are not exactly known, but defined by some known elements, which form the vertices of this polytope. Robust optimal portfolio problems are proposed in the market with and without risk-free asset. And the analytical solutions are given out when the covariance matrix of the risky assets are exactly known.

本文假设风险资产和无风险资产的收益以及风险资产的协方差矩阵不是完全确定的，其相关参数属于某个已知的凸多面体，分别在市场不存在和存在无风险资产的情况下定义了稳健最优投资组合问题，并在协方差矩阵确定的情况下给出了问题的解析解。

This topic made a selection and a more detailed design calculation for the Oxide reactor according to the known technical parameters, which is the core equipment for sym-Tetramethyl benzene catalyzed oxidated to Pyromellitic Dianhydride , and made a detailed description about the manufacturing process of the reactor.

本课题根据已知的均四甲苯催化氧化法制取均酐的最佳工艺参数，对其核心设备氧化反应器进行了结构选型和较为详细的结构设计计算，并对反应器的制造工艺进行了详细的说明。

By doing so, the effect of training data pollution in STAP is mitigated.

另一种方法是根据已知的雷达系统参数计算出近程杂波的距离多普勒二维分布，在STAP处理时将包含近程杂波的距离单元剔除使之不参与协方差矩阵的统计，这样就减少了样本污染对STAP的影响。

The primary goal of the project is to contextualize the contents of a number of known Tangut Buddhist texts, which apparently belong to the realm of Chinese Buddhism with regard to the suggested existence of the tradition of the "Northern Buddhism", since Tangut and Liao texts, in both Chinese and Tangut scripts, apparently provide the most sufficient body of evidence for the research of this tradition.

这一研究的主要目标是将一些已知的西夏佛教文献放回其产生环境加以考虑。就其所显示的&北方佛教&传统而言，这些佛教文献可以很确定地归入中国佛教范畴。不管是中文抄本还是西夏文抄本，西夏和辽国的文献都明确提供了在研究这一传统时所需要的最充分依据。

Compared with the situation that other defends the virus method,this method has very good hiding amount of information,can take precautions against the executable file computer virus that has already known,ones that can be taken precautions against unknownly too and this kind of computer virus in the future.

分析了该方法的长处和不足，与其它防病毒方法相比，该方法具有很好的信息隐藏量，能防范已知的可执行文件类计算机病毒，也能防范未知的和未来的该类计算机病毒。

Our bodies will then be true; for the soul will body itself forth according to its past history, not only impress itself, as now on the features, but express itself, so that a man may be known by what he is, and as what he is.

我们的身体届时真正的；灵魂，将机构本身提出了根据其过去的历史，不仅留下深刻的印象本身，现在就功能，但表达自己，使一名男子可能是已知的由他是什么，和什么他是。

In the whole process of Chinese netclasses, the students have enhanced their ability of fast reading and conjecturing the content of a passage through several known sentences. They have learned to use brief sentences to write an article on-site in a short time and to comment on others' opinions in their articles (argumentative writing or counter argumentative writing).

在语文网络教学的全过程中，在阅读方面，学生的快速阅读能力和通过已知的少量语句推测文章内容的能力得到了锻炼；在写作方面，培养了学生利用简短的语言，在有限时间内现场作文的能力以及通过文章评价别人观点的能力。

There are already five known cooperating witnesses in the sprawling case, in which 20 individuals were ensnared in one of the biggest insider-trading investigations in U.S. history.

目前在这个不断蔓延开来的案件中已经有5个已知的合作证人，这个包括20个人在内的被调查的案件是美国历史上最大的一起内幕交易案件。

If reasoning is a means of inferring new information from what is already known, problem solving is the process of finding a solution to an unfamiliar task, using the knowledge we have.

如果推理是从已知的东西推出新的信息的一种方法，那么问题求解就是运用我们掌握的知识对一个不熟悉的任务找出解决办法的过程。

Researching the occurrence characters of ore deposits, we found that the overlapping places or near districts of metallogenic factors, such as linear structures, ductile shear zones, circular structures, intrusting bodies, and alteration abnormal features are favorable for ore deposition

从区内已知的Au、Cu、Mo等矿床、矿点、矿化点及一些Au、Cu、Mo等多金属元素化探异常的产出特点看，本区的线性构造、韧性剪切带构造、环形构造、岩浆岩侵入体及蚀变异常等尽可能多的有利成矿信息的复合部位及附近，为成矿的有利环境或地段。

They weren't aggressive, but I yelled and threw a rock in their direction to get them off the trail and away from me, just in case.

他们没有侵略性，但我大喊，并在他们的方向扔石头让他们过的线索，远离我，以防万一。

In slot 2 in your bag put wrapping paper, quantity does not matter in this case.

在你的书包里槽2把包装纸、数量无关紧要。