不连续地

As one of the most often used mountings, the altazimuth mounting satellite tracker has a blind area near the zenith because of the very high azimuth angular velocity, as a result, discontinuous observing data are caused. As for those fast flying satellites, this kind of blind area is very significant because it causes difficulties in precisely determining the satellites' orbits.

作为最常用的一种机架，采用地平式机架的人卫跟踪仪在观测天顶附近区域的目标时，由于方位转速过大而不能连续观测，存在一个固有的天顶盲区，特别是对飞行速度较快的近地卫星，这个盲区的影响是相当大的。

With this technology the multimedia information can be displayed while it is being downloaded, so that the users do not have to waste their time when downloading, and there will be a redically reduced need in the system memeory capacity, and then the multicast technology of the streaming media transmit technology has more advantage, it has the functions which can transmit a stream for a group of client without any delay or broadcast storm. Therefore it can inprove the availability of the network system.

流媒体以边下载边播放的特点，不但除去了用户漫长的下载等待痛苦，而且极大地降低了对系统存储容量的需求，同时流媒体传输技术中的组播技术具有更大的优势，它能让媒体服务器同时向多个客户端发送连续数据流而不产生延时，而且又不会产生广播风暴，极大地提高了网络利用率。

In processing high sampling data system, discrete time model using delta operator approaches corresponding continuous time model, and the results also tends to the corresponding ones of its continuous counterpart.

在处理高速采样过程时，Delta算子离散模型接近于原来的连续模型，所得结果也趋近于连续模型的相应结果，较好地解决了传统的移位算子方法在高速采样时引起的数值不稳定问题。

Firstly, this paper investigated roundly the basic theory of the ambient vibration method, analyzed systematically the main methods of ambient vibration identification, and discussed their advantages and disadvantages. Then we established the finite element model of structural dynamics and test model and analyzed their mutual relation, improved MUSIC method and correlation function method in the harmonic identification, and gave the subspace method and correlation function method based on continuous model, which is multi-harmonic retrieve technique. And then, this paper also puts forward least-squares method to estimate directly structural physical and modal parameters; this approach replaced the derivative operator in the continuous time model with an equivalent approximation, and estimated the physical parameters of structures by the least-squares method. And then, we discussed the approximation methods of derivative and their convergence. Finally, this paper researched the modal parameters of a frame structure by the simulation and test. The results demonstrated that subspace method, correlation function method and the least-squares method are effective and stable respectively.

全面地研究环境振动识别方法的基本理论，系统地分析环境振动识别方法的主要方法，讨论它们的优点和不足；建立结(来源：6666AB44C论文网www.abclunwen.com)构动力学的有限元模型和试验模型，分析有限元模型与试验模型之间的相互关系；改进谐波识别中的MUSIC识别方法和相关函数识别方法，给出大型结构模态识别的连续型的子空间分解识别方法和相关函数识别方法，这个方法是多元谐波识别方法；提出直接识别结构的物理参数和模态参数的最小二乘方法，这个方法利用导数的近似值代替导数值，并运用最小二乘方法识别结构的物理参数，讨论导数近似值的选择方法，分析算法的收敛性；通过仿真计算和模型实验，研究高层框架结构的模态参数识别，验证子空间分解识别方法、相关函数识别方法和最小二乘识别方法的有效性，算法的稳定性；从理论和试验两个方面分析和研究噪声对识别精度的影响，影响识别精度的因素，以及部分模态成分的模态参数不能够被识别的原因。

Being based on the acknowledgement of continuum medium hypothesis, it has made an analysis of some general movements of macro material, which points out that there are a series non-consistence problems in logic in the Cauchy's stress theory and Stokes's stress hypothesis, etc.

除了指出 Cauchy 的两个应力定理， Stokes 应力假设等存在的逻辑不自洽问题，并产生的原因进行了系统分析以外，演绎地构造了连续介质物质模型严格假设下的完整形式表述体系，并且演绎地导得这个演绎体系必然导致三维物质流形，在三维 Euclid 空间中恒为超定。

Songshan World Geological Park has a total area of 464square kilometers. In the park, aggradation and structure, such as magmatic rock, metamorphic rock and sedimentary rock of the 5periods of geologic history, namely 二 Archean Eon, Proterozoic Eon, Paleozoic, Mesozoic and Cenozoic, continuously and completely crop out, relics of angular discordance interface and structural feature fwature by 3 global Precambrian orogeny and epeirogeny respectively called SongYang motion, Zhongyue motion and Shaolin motion taking place 25billion years,1.8billion years and 546million years ago. This park is called by geologists as" natural geology museum ,of" five generations under one roof .

嵩山世界地质公园总面积 464 平方千米，公园内连续完整地出露着太古宙、元古宙、古生代、中生代、新生代五个地质历史时期的岩浆岩、变质岩、沉积岩等沉积和构造，清晰地保存着发生在距今 25 亿年、 18 亿年、 5.46 亿年前被分别命名为嵩阳运动、中岳运动和少林运动的三次全球性前寒武纪造山、造陆运动所形成的角度不整合界面及构造形态遗迹，被地质学家称为"五世同堂"的"天然地质博物馆"。

In the numerical simulation, the new formulation not only remedies the boundary deficiency problem in the original SPH but also more efficiently repairs the truncated integral in kernel approximation caused by discontinuity and eliminates the errors from particle inconsistency in discontinuous region.

比较不同SPH方程近似二次函数的结果，新方法不仅改进了传统SPH方法存在的边界缺陷问题，同时在非连续区域内也能更有效地修复由非连续引起的核近似截断积分和消除粒子不一致性所造成的误差。

In particular,the C-Autoencoder provides such a bi-directional mapping between the high-dimensional data space and the low-dimensional manifold space and is not only able to overcome the inherited deficiency of most nonlinear dimensionality reduction methods that do not have an inverse mapping but also especially suitable for dimensionality reduction and reconstruction of high-dimensional continuous data.

特别地，这种连续自编码网络可以提供高维连续数据空间和低维嵌套结构的双向映射，不仅有效解决了大多数非线性降维方法所不具备的逆向映射问题，而且特别适用于高维连续数据的降维和重构。

You Better Not Come Home U can't be trusted, boy you got busted, got me angry and disgusted, what's this, attitude no gratitude, what you doin' on the side boy, got me mad at you, but what I'm bout to do it tighten up, get rough, had enough, what's up, times are about to get real tough,- cause your covers got blown, now you out on your own - so you know you better not come back home Better not, better not, better not come home you better not come home Better not, better not, better not come home you better not come home It's really gettin\' hot tonight so u better not come home - uuuuh baby gotta treat me right so u better not come home - it's really gettin\' hot tonight so u better not come home - uuuuh baby gotta treat me right so u better not come home It\'s like hot in the kitchen why you act\'en like that, why you tripp\'en and flippen girl I see that you won\'t listen, it\'s like I\'m pippen on a underground mission, why you acten foul, girl you getten kinda loud,- with them accuasations, I can see you don\'t understand what i\'m facin\' the aggravation unjustified retaliation, girl you better wake up and tecognize the facts, ain\'t no need to act like that Now you playen out of bounds, better check your tags, I used to be a straight mack recognize homegirl I don\'t get down like that, way back in the days, had my street fame now I changed my game, better educated, straight up better dedicated, playen\' for real girl, never hesitated, so why you wanna go and leave your brotha alone, what you mean girl I better not come back home.

更好地为您不来主页ü不能信任，男孩你破获，让我感到愤怒和反感，这是什么，态度没有任何感激之情，你的乐队'的一方的男孩，让我疯了你，但是我比赛做它收紧，让粗糙，受够了，这是怎么回事，时间大约获得真正的困难，-造成您的涵盖了吹，现在你对你自己的-所以你知道你最好不要回来最好不要，最好不要，最好不要回家你最好不要回家最好不要，最好不要，最好不要回家你最好不要回家这真是gettin \ '热今晚所以ü最好不要回家- uuuuh婴儿对待我爱的权利所以ü最好不要回家-这真是gettin \ '热今晚所以ü最好不要回家- uuuuh婴儿对待我爱的权利所以ü最好不要回家这\ '就像在厨房里热为什么你的行为\ '恩这样，你为什么特里普\ '恩和flippen 女孩我看到你赢得\ '吨听，它\ '，就像我\ '米皮蓬在地下的使命，为什么你acten犯规，女孩你朋友太多还挺响亮，-与他们accuasations ，我可以看到你不\ '吨理解我\ '米facin \ '加剧不合理的报复，女孩醒来，更好地为您和tecognize的事实，艾因\ '吨没有必要采取这样的现在您playen出界，更好地检查您的标记，我曾经是一个连续麦克承认homegirl我不\ '吨开始这样，回程的日子，有我街名利现在我改变了我的游戏，更好的教育，更好的专用直线上升， playen \ '真正的女孩，从未犹豫过，为什么你想要去并留下您的brotha ，仅你的意思的女孩我还是没有回来。

And I say that the universal nature employs them equally, instead of saying that they happen alike to those who are produced in continuous series and to those who come after them by virtue of a certain original movement of Providence, according to which it moved from a certain beginning to this ordering of things, having conceived certain principles of the things which were to be, and having determined powers productive of beings and of changes and of such like successions.

我是说宇宙本性同等地利用它们，而不是说它们同样地发生于那些在连续的系列中产生的人和那些在他们之后通过神意的某种原初运动而产生的人，这一运动按照神意从某一开端向这一事物系列运动，孕育着某些将要存在的事物原则，决定着产生存在、变化和这样一种连续系列的力量。

Chrysanthemum of 10 thousand birthday is lax to edaphic requirement, with the arenaceous qualitative loam with fecund, good drainage had better.

万寿菊对土壤要求不严，以肥沃。排水良好的砂质壤土为好。

He unstepped the mast and furled the sail and tied it.

他拔下桅杆，把帆卷起，系住。