最后面的

Firstly, This paper processes geometry filtration based on character of orbit's apogee and perigee after orbit model is analyzed and based. Secondly Space Debris is separated into two kinds, coplanar and not coplanar according as location interrelation of target and debris. In Dynamic filtration's processing, considering prediction time limit and orbit perturbation, secular effects which have increaser effect is considered so that some need catching danger time point is appeased, some law about time when target and debris pass intersectant line each other is inferred, when debris and object are in different plane and some similar law also is inferred otherwise. The time list is arithmetical progression. These laws can improve calculation efficiency remarkably; Lastly orbit predict is a course approaching least distance. Danger time point in the last step become beginning time point from which debris and object's position and velocity are calculated by SXP4 Model which is an analytic model.By result, determine that relative movement trend is closer or apart, farther calculate the interval apart from time when predictive least relative distance occurs. Least relative distance and time when least distance occurs is calculated finally. It is a fast approach course adopting varied interval.

本文在分析、建立轨道摄动计算模型的基础上，首先采用基于轨道远、近地点特征对大量编目在册的空间碎片进行初步几何静态筛选，然后根据碎片与目标轨道面的相对位置特点把碎片分为异面与准共面两种情况以进行动态筛选，在筛选过程中考虑到预报时限长度和轨道摄动影响，引入了轨道摄动中具有积累效应的长期项以满足危险时间点的捕捉要求，利用了长期项摄动变化线性的特点导出了碎片与目标异面情况下各自过交线的时间序列成准等差数列的规律性和准共面情况下类似的规律性，从而显著地提高了前期轨道筛选的计算效率；最后对剩余危险碎片和目标飞行器利用SXP4轨道预报模型在前期轨道筛选的基础上以各个危险探测时间点为预报的时间起点，并根据预报计算结果，分析目标和碎片在该时间点的运动趋势是相互远离还是相互接近，推出预计最小相对距离发生时刻相对此刻的时间长度，得到其随时间变化的局部最小相对距离以及危险距离发生的时刻和相对速度，这是一个采用变时间步长、快速逼近最小相对距离的过程。

Here was knowledge in which no one could partake; and she was sensible that nothing less than a perfect understanding between the parties could justify her in throwing off this last incumbrance of mystery.

这件事是不能让任何人知道的，她觉得除非把各方面的情况里里外外都弄明白了，这最后的一点秘密还不应该揭露。

Ultimate analysis management information system's development agent, as well as management information system in network and integration, intellectualization, platform type management information system three aspect trends of development.

最后分析了管理信息系统的发展动因，以及管理信息系统在网络化及集成化，智能化，平台式管理信息系统三方面的发展趋势。

First, it begins with the study of the centralized CFAR detection with multiple sensors. The non-CFAR problem is analyzed; the necessity for local CFAR processing is established. The effective local CFAR processing scheme is proposed, i.e. the local test statistic. The upper limit of the optimal performance is proved for the distributed CFAR detection based on LTS. Then, the new schemes based on LTS are analyzed in condition of signal pulse, and then the analysis is expanded to the case of multiple pulses. Next, the feedback mechanism is introduced. At last, the invariant test is used to reveal the essence of CFAR processing. It explains the necessity of local CFAR processing in the distributed CFAR detection at a higher level.

本文深入研究了这方面的问题，首先从多传感器集中式 CFAR 检测入手，分析其存在的非 CFAR 问题，论述局部 CFAR 处理的必要性，提出有效的局部 CFAR 处理方法：局部检测统计量，证明基于局部检测统计量的分布式 CFAR 检测的最优性能上限，分析基于局部检测统计量的新方案在单脉冲条件下的性能，并且进一步拓展到多脉冲非相干积累的情况，然后引入反馈机制，最后利用不变检验的概念揭示 CFAR 处理的机理，从更高的层次上解释分布式 CFAR 检测做局部 CFAR 处理的必要性。

Aimed at how to apply the theory of knowledge organization to software design and development, this paper analyzes the limits and difficulties of traditional document information management system in supporting to KOS. It emphasizes the ideal of Multi-MARC which construct the union mechanism to describe different type document and supprot KOS integrate with document information management system. It also introduces the effect on software development.

针对如何将知识组织的理论应用于软件系统的设计与开发，分析传统文献信息系统在知识组织系统支持方面的局限和困难，着重介绍Multi-MARC架构统一的知识描述机制的思想，通过为各种不同类型的对象建立相同的描述机制，实现知识组织系统融入文献信息管理系统，最后介绍在软件开发方面的影响。

Then the computation processes of the wedge sliding safety factor considering seismic influences in 3DEC are carried out, and two important steps in the compute process are given: the determination of the area of triangle, the volume of tetrahedron in 3D and the intersect line vector of two joint faces.

最后，分析考虑地震影响下楔体安全系数计算在3DEC中的实现过程，并且给出计算过程中的2个重要步骤，确定空间三角形的面积和四面体的体积以及确定两节理面的交线矢量。

In this paper, an iterative approach to potential field continuation from curved surface to plane is proposed. The continuation of potential field data from a curved surface to a plane can be viewed as an inverse problem of upward continuation of plane potential field data, getting a linear integral equation. Through viewing the potential field data on the curved surface as the data on the average elevation plane of the curved surface, then using the wavenumber domain generalized inverse algorithm to downward continue the data from the average elevation plane to a given plane, and a topography correction based on the change of curved surface relative to its average elevation is implemented to the downward continued data on the given plane, finally the downward continued data plane is upward continued to the curved surface.

本文提出一种位场数据曲化平的迭代方法，即通过把位场数据曲化平视为平面位场数据向上延拓的反问题，得到曲化平的线性积分方程，再把曲面上位场数据视为曲面平均高程面上的位场数据，利用向下延拓的波数域广义逆算法把平均高程面上的位场数据向下延拓到设定平面上，再根据曲面和其平均高程面的相对起伏对设定平面上的向下延拓数据进行起伏校正，最后再把所得平面上的位场数据向上延拓得到曲面上的位场数据，并进行迭代。

After paying what little debts I had accumulated among the linotype operators and a goodwill token at the bistro across the way, in order to preserve my credit, there was scarcely anything left out of my final pay.

我付清累积欠排字工的小笔债务，又给马路对面的小酒馆送了一份礼以便继续赊帐，这样一来最后一次工资就所剩无几了。

He finally agreed and sent me a card.i opened it up,and it wished me'harmony and wellbeing on Lupercalia' What is Lupercalia?

他最后答应了，送了我一张。我打开贺卡，上面的祝福语是"一帆风顺，幸福快乐。来自Lupercalia"Lupercalia是干什么的？

The last scene shows you what will happen at the end of the harvest: the famous Calabrian macaroni-eating competition!

最后这个场面向你表明，收获结束时将要进行的活动：卡拉布亚人吃通心面的对抗赛！

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐