查询词典 one and another

Thirdly, Lower-grade plants such as lichen, bryozoan etc. begin to grow. Along with the accumulation of living beings is going more and more, the amount of organic matter in the parent material forming soil is going more and more, Then higher-grade plants gradually replace lower-grade plants, and through strong and extensive root system, the dispersive and soluble nutrition can be concentrated. After the death of organisms, and through decomposition of microbes, one part of the remains of the organisms becomes nutrients for plants, and another part of the remains turns into humus.

第三步，地衣、苔藓类低等植物开始生长，随着生物的积累作用越来越大，成土母质中的有机物数量不断增加，最后高等植物逐渐取代了低等植物，通过强大的根系把分散的可溶性养分集中起来，等到这些生物死亡之后，它们的残体经过微生物的分解作用，一部分成为后来植物所需的养分，另一部分变成了腐殖质。

In 1990 and the pioneer works of Pecora and Carrol, The theoretical research and applied study of the chaotic control and chaotic synchronization get the development at full speed. Various kinds of methods of the chaotic control come out one after another and people find the chaotic control and chaotic synchronization can be applied to a lot of fields such as secure communications, chemical, modeling brain activity etc.

但自1990年E.Ott等人提出了OGY方法以及Pecora和Carroll关于混沌同步的开创性工作之后，混沌控制与同步的理论研究和应用研究得到飞速发展，各种控制混沌的方法相继问世，并发现了混沌控制与同步可以在诸如保密通讯、信号处理、化学反应、生态和电力系统等领域广泛应用。

The main job and contribution of this paper are as follows:Based on narrowband signal processing, we propose a new method for FH signal blind detection and blind parameter estimation. Firstly, compute the cross-correlation function of FH signals from multichannels, then we get the cross power spectral density matrixCSDM Secondly, select the hops of FH signals from the CSDM via processing and analyzing the CSDM, meanwhile reduce the influence coming from noise, fixed frequency signal and other interferences; Lastly, estimating the DOA of every hop and according to the DOA, we can separate the hops, get the number of FH signals and their parameters. Propose a new method for designing the threshold in FH signal detection. This method makes it easy to get the threshold by theoretic computing and it can extremely reduce the interference of non-FH signals.Based on broadband signal processing, we propose a new method for FH signal blind detection and blind parameter estimation. Firstly, get the DOA of the signals by wideband spatial spectrum estimation; secondly, separate the signals by spatial filtering using wideband beamformer; Lastly, we propose two methods for FH signal blind detection and blind parameter estimation, one is for several constant hop-rate FH signals whose dwell-time are different and another is for a single FH signal whose hop-rate is alterable.By employing spatial interpolation in broadband signal beamforming, it can reduce the number of antenna elements and corresponding RF modules, A/D converters, etc. It can also eliminate the mutual coupling between antenna elements while getting the narrower main beamwidth and lower sidelobe level.

本文的主要研究工作和贡献如下：●提出了一种基于窄带处理的FH信号盲检测和参数盲估计的实现方法，即首先求出多路信号之间的互相关，进而得到互功率谱密度矩阵，然后通过对CSDM进行对折处理来抑制噪声、定频信号及其他干扰的影响，并将所有属于FH信号的hop(每一跳的驻留时间在时频图上持续的线段)从CSDM中筛选出来，最后用阵列信号处理中的到达方向估计理论在频域中估计出各个hop的方向参数，利用方位信息完成FH信号分离并得到FH信号的数目及其各自的参数集；●提出了一种确定FH信号检测门限的策略，该策略不仅使得检测门限能够通过理论计算得到，而且还显著地抑制了非跳频信号的干扰，从而能有效地检测出FH信号；●提出了一种基于宽带处理的短波FH信号盲检测和参数盲估计的实现方法，即首先利用宽带空间谱测向技术得到接收信号的DOA，然后采用宽带波束形成技术对特定方向进行空间滤波，实现多个信号的分离，最后分别提出了两种FH信号的盲检测和参数盲估计方法，第一种方法适用于空间某个特定方向上存在着几个驻留时间不同的恒跳速FH信号和其他干扰信号的混合信号，第二种方法适用于空间某个特定方向上仅含一个可变跳速的FH信号和噪声的混合信号；●将空间插值的概念和宽带波束形成技术结合起来，提出了一种基于频域处理的宽带恒定束宽的波束形成方法。

The main content of the study includes: the policy variables are classified into two types, which are continuous policy variable and discrete policy variable, and the two variable is analyzed respectively; as to the continuous policy variable, use reasonable weighting to synthesize comprehensive policy indicator to reflect the comprehensiveness of each main policy indicator; undertake regression analysis for the comprehensive policy indicator, economic and stock market variable and get the effect of all kinds of comprehensive policy indictor variables on the economy and stock market; undertake regression analysis for data on the economic indicator and the data on the stock market and get the relationship between the economy and the stock market; use event research method to analyze its effect on the stock market and get some corresponding conclusions; structure the differential or difference equation groups on the interactive relationship among the variable economy, stock market and policy and do the difference operation and constitute simultaneous equation with the original main variables one after another; use quantitative regression method and solve the coefficient of the simultaneous equation to predict the operating tendency.

本研究主要内容包括：将政策变量划分为连续性政策变量和离散政策变量两个类型，并分别进行分析；对于连续性政策变量，采取合理的权重来合成政策综合指标，反映各主要政策指标的综合力度大小；将各政策综合指标与经济、股市变量进行回归分析，获得各类政策综合指标变量对经济、股市影响程度的大小；将经济指标数据与股市数据进行回归分析，获得经济与股市之间关系的大小；采取事件研究方法来分析其对股市的影响程度；构建关于经济、股市与政策各主要变量之间互动关系的微分或差分方程组，进行差分运算，并以此与原来各主要变量组成联立方程；运用计量回归方法，求出联立方程系数用于预测。

In recent years, computer hardware and software are developing at full speed. CPU speed and memory space are tremendously increasing. Color monitor and color plotter have made considerable progress. Software environments, such as WINDOWS and X- WINDOW, appeared, and their new editions are unceasingly renewed. Graphic normalization, for instance, GKS, PHIGS, OpenGL, CGM and POSTSCRIPT, are popularized one after another.

近年来计算机硬件和软件技术有了飞速的发展：运算速度和内储容量惊人提高，彩色显示器和彩色绘图仪长足发展， WINDOWS和X-WINDOW等软件环境出现及版本升级，GKS，PHIGS，OpenGL，CGM和POSTSCRIPT等绘图标准的先后推广使用。

We had discussed this point in our Junto, where I was on the side of an addition, being persuaded that the first small sum struck in 1723 had done much good by increasing the trade, employment, and number of inhabitants in the province, since I now saw all the old houses inhabited, and many new ones building; whereas I remembered well, when I first walked about the streets of Philadelphia, eating my roll, I saw many of the houses in Walnut-street, between Second and Front streets, with bills on their doors,"To be let," and many likewise in Chestnut-street and other streets, which made me think the inhabitants of the city were one after another deserting it.3 }% x: V5 D1 q7 i+ D8 }1 r

关于这一点我们曾在俱乐部中讨论，在那里我是站在增加纸币的一方面，我确信在一七二三年初次发行的小数目，做了许多的好处，曾使商业、工作、人口都有大幅增加，到现在我见所有的老房子都有住人，而许多新的正在建筑的房子；据我所记得的，当我初次在费城的街道上散步，吃我的「一卷」时，我看到在胡桃街和近于二条街之间的房屋，大部分在他们的门上贴着「出租」，在栗子街和其它街道的许多房屋也差不多，这种情形使我想到城里的居民都要一个个离开此地了。

Without measuring the relative angles between objects, the validity of traffic accident on-site sketch is often challenged. In Taiwan, two common measuring methods for drawing a traffic accident on-site sketch: one is trilateration method, and another one is offset method. Both methods have their limits.

现行，常用於绘制交通事故现场图的量测方法有二：一为三定点法，此法常因测线间夹角过大或过小时，使得当测线彼此间的夹角有微小误差时，即造成颇大的位置偏移误差；另一方法为直角坐标法，此法应用在交通事故现场绘制的测量，假设目测标定於基准线与基准线外之测量点的连线成直角，若不为直角时，易造成绘制结果的偏差。

At the end of his book, he wonders, if political schools suddenly sprang up all over; a conservative school in one town and a Trotskyite one in another?

他思量着这样一个问题，如果政治性的学校突然在全国各地涌现，这里一个保守主义型的，那里一个马克思主义型的，那会是一个什么局面呢？

Moreover, as Gide has very well said, a sentiment which is play-acting and one which is vital are two things that are hardly distinguishable one from another.

如果价值是没有把握的，如果价值太抽象了，没法用它来决定我们目前所考虑的特殊的，具体的事情，那就只有倚仗本能一法了。

Moreover, as Gide has very well said, a sentiment which is play-acting and one which is vital are two things that are hardly distinguishable one from another.

而且，纪德说得好，逢场作戏的情感和认真的情感是两种几乎不能区别的东西。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。