种特征

With internationally latest studies, the paper also proposes some biquadrate filters which are capable to perform the functions of second-order low pass、 high pass、 band pass、 band stop、 all pass filtering by selecting one of the three inputs or their proper combinations from the same configuration, furthermore whose natural frequency and the quality factor can be tuned independently. Then a continuous-time biquadratic filter using CCCII is proposed, which can be used in hearing aids and in other analog signal processing applications. Lastly a current mode and a voltage mode novel n-order filters of multifunction are presented. Not all both of the n-order filters are electronic tunable,but also they are integrated conveniently and compatible with VLSI technology.

尽量的全面归纳以电流控制传送器为有源器件的有源网络模拟电路、模拟信号处理电路，借鉴国内外最新研究成果，提出两种基于CCCⅡ的双二阶滤波器，这些电路在不需要改变电路结构的情况下，能同时实现低通、高通、带通、带阻或全通多种滤波功能，并且滤波器的特征频率ω_0和品质因数Q可实现独立调节；其中一种基于CCCⅡ的双二阶滤波器，首次提出将CCCⅡ应用于可编程助听器领域；最后设计了两种高阶滤波器，电压模式和电流模式各一种，这两种滤波电路均能实现多种滤波功能，能实现滤波器参数的电调谐，具有易于集成等优点。

The characteristics of bryological biodiversity as follows:(1) It consists of 36 bryophyte taxa in 19 genera and 11 families. Among them, 30 moss taxa in 15 genera and 8 families were founded while 6 liverwort taxa in 4 genera and 3 families were recorded.

经室内分析研究，该地苔鲜植物具有下列生物多样性特征：(1)苔藓种类多样性由11科19属36种组成，其中含广西新记录25种；藓类含8科15属30种，苔类3科4属6种。

Chapter 1 briefs the relation between invariance and computer vision and summarizes the research and application of invariance in computer vision. Chapter 2 first derives the transformations of three camera models, then makes the correpondences between the models and three typical geometrical transformation groups by analysing the transformations respectively. The correspondences supply the theoretical basis for applying geometrical invariants to resolve the problems of computer vision. In Chapter 3, we describe the geometrical invariant theory and prove some geometrical invariants of coplanar points, lines or conics by algebraic method. In order to use the invariants of conic pairs to describe general 2D shapes, we discuss the perspectively invariant representation of planar curves using conies in detail. A system consisted of two TMS320C25 and based on moment invariants is introduced in Chapter 5. The system can recognize more than 30 different shapes of object model or more than 10 plane models with similar shape in real time.

第一章简述了不变性与计算机视觉的关系，以及计算机视觉中的不变性研究和应用概况；第二章推导了计算机视觉中常用三种投影模型的变换关系，通过对这三种变换关系的分析，分别建立了这三种投影模型和几何学中的三种变换群之间的一一对应关系，为几何不变性在计算机视觉中的应用提供了理论基础；在第三章中，我们介绍了几何不变性的理论，并且用代数方法证明了共面点、直线、二次曲线的几何不变量和射影不变量；为了把二次曲线的不变量用于一般二维形状描述，在第四章中我们详细地讨论了用二次曲线实现一般平面曲线的透视不变性表示的方法；第五章介绍了用两片TMS320C25构成的、基于不变矩形特征的运动目标实时识别系统。

Unix / Linux computer systems for banks to use a very wide range of an operating system, AWK is a Unix / Linux under a deal with the text of the programming language tools, is a SHELL program design with, BC, and language features of C programming language, It is the Unix operating system, and mode of dealing with the calculation squadron of great benefit both as a tool, both as a command, but also a group of control language, is a very elegant programming language, its documentation a simple and neat, and then be able to complete a number of other tools difficult to complete the task, and thus has a very wide range of uses, given its ability to handle the power of a text file,In this regard giving full play to its unique advantages.

Unix/Linux 是银行计算机系统中使用特别广泛旳─种操作系统，AWK是Unix/Linux下一种解决文本的编程语言工具，是一种具备SHELL程序设计、BC和C语言特征的程序设计语言，它是Unix系统中队计算业务和模式处理都大有裨益的一种工具，它既是命令，也是一组控制语言，是一种相当优雅的程序设计语言，其文档简洁明快，并接能够完成许多其他工具难以完成的任务，因而具有相当广泛的用途，鉴于其具有处理文本文件的强大功能，在这方面可以充分发挥其独特的优势。

In this article,we try to prove:1In the history of language in Europe,German is not closer to Greek than the languages of Latin family including French;2Return to the Thought of ancient Greece only by ascending to its origin is just a wrong way;3No any national language could monopolize the philosophy;4French as a national language has its great character which is very special and helpful for building the unique identity of French philosophy.

单纯通过追溯起源来回归希腊思想在哲学上是一种虚假的乡愁；3。语言本身并不能穷尽思，从而没有哪种民族语言可以独享哲学的特权；4。而法语作为一种民族语言，其本身在言说思想的同时比其他语言更注重一种"讲述的文学性"，从而与思想本身形成了一种强大的张力和互动关系，从而使法国哲学显现出强大的创造力，并由此奠定了"法语哲学"之区别于德语哲学以及其他民族语言哲学的明显特征和身份。

The results showed that the total dissoluble proteins hands of 8% and 10% gel were 91 and 97, respectively, and the seed salt soluble proteins bands of 10% gel were 69; All of the five alfalfa species have their own characteristic bands, which are different in number, distribution, width, and concentration; Among three methods, the five species' seed dissoluble protein fingerprints of 10% gel' bands is relatively more, which genetic diversity scattered in A, B and C regions, and can be repeated in different experiments. So it's the best fingerprint. The fingerprints of the seed dissoluble proteins and seed salt soluble proteins of five species are unanimous, which showed that: the hybrid has the nearest genetic distance with Medico go sativa cv.

结果显示：5/个种10%和8%凝胶电泳的种子可溶性蛋白总带数分别为97和91， 10%凝胶电泳的种子盐溶蛋白共有69条谱带；5种苜蓿在种子可溶性蛋白和盐溶蛋白电泳图上都具有各自的特征谱带，谱带数目、位置、宽窄和颜色深浅都存在明显的差异；10%凝胶的可溶性蛋白指纹图谱谱带数目相对较多，种间遗传差异在A、B、C区均有分布，谱带的重复性好，是鉴别种的最好图谱。5种苜蓿种子可溶性蛋白和盐溶蛋白指纹图谱一致，表明杂交种和敖汉苜蓿的谱带相似性最大。

Samples were subjected to high pressure ranging from 100 to 500 MPa. After high pressure treatments, the flavour compounds were extracted by Solid-Phase Microextraction. Analysis was carried out by Gas Chromatography-Mass Spectrometry. The key flavour compounds of orange juice were three alkenes (namely limonene, myrcene and α-pinene), two alcohols (linalool and α-terpineol), three aldehydes, one ketone and two esters (ethyl butyrate and 3-OH-ethyl hexanoate).

采用固相微萃取（Solid Phase Microextraction，SPME）方法对不同压力（100～500 MPa）超高压处理的鲜榨橙汁中的香气成分进行富集，并经气相色谱-质谱联用仪（Gas Chromatography-Mass Spectrometry，GC-MS）检测分析，橙汁中的主要香气成分有：3种烯（柠檬烯、月桂烯、α-蒎烯）；2种醇；3种醛；1种酮；2种酯（丁酸乙酯、3-OH-己酸乙酯），它们是构成橙汁的主要特征致香成分。

The two-dimensional structural units (such as silicon-oxygen tetrahedral sheet, octahedral sheet), interlayer space are assembled according to the sphere close packing manner, and the close packing layers parallel to {0001}. There are several mechanisms to release the difference in size while the silicon-oxygen tetrahedral sheet and octahedral sheet assemble the TO and TOT-type structural layers. The two types of structural layers with different interlayer space fitted together in six kinds of assembling modes and formed six kinds of crystal layers. The combinatorics analysis of the two-dimensional structural units revealed that there may be 28 kinds of TOT type interstradified minerals in six kinds of polysomatic assembling modes of interatradified structure. The structural layer is symmetrical for octahedron sheet in the structure of interstratified minerals and shows polarity characteristics.

结果表明，不同二维结构单元体（包括硅氧四面体片、八面体片、层间域的构筑基本符合球体紧密堆积原理，紧密堆积层平行{0001}；四面体片与八面体片构筑TO和TOT结构层时采取多种机制消除二者在二维尺寸上的差异；两种模式的结构层与不同类型的层间物组装形成六种组装模式的晶层；并通过二维结构单元体的组合规律的分析，计算出可能存在的28种TOT型间层结构，它们分属于6种间层结构多体性组装模式；间层结构中，结构层对于八面体片是不对称的，并在属性上表现出极性特征；间层矿物的晶层类型可用6种多体性组装模式加以表达。

Firstly, according to the taxonomic approach of two-sided markets, the social network sites, which is a complicated network platform with multi-sided markets , have both media platform and software platform characters.

首先，本文根据双边市场的分类方法，通过对社交网站媒体特征和插件平台特征的分析，发现社交网站兼具媒体平台和软件平台的双边市场特征，是一种具有多重双边市场的综合性网络平台。

The time-history velocity response signal of pile can be decomposed by Sym wavelet. The power spectrum value can be extracted from some specified spectrum range. These values from one signal makes up the characteristic vector representing this signal. The relationship between characteristic vector of pile and pile defect type can he established by using BP artificial neural network. Abundant time-history velocity response signals of pile can be acquired by numerical simulation method.

利用Sym小波对基桩速度响应时程曲线进行小波分解，对指定频带上的信号分量进行特征值提取，提取的特征值为反映各频带范围内体现能量分布的功率谱均值，提取的特征值可构成反映信号特征的特征向量，同时利用BP人工神经网络的非线性映射特性建立特征向量和基桩缺陷类别之间的一种对应关系。

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！