可实现的

On the basis of the coincident relation between a radar signal and a radar ambiguity function, an arbitrary bounded two-dimensional function of intergrable square is presented as a necessary and sufficient condition for radar ambiguity function.

本文基于雷达信号和雷达模糊度函数间的一致关系，提出了任意平方可积的二维有界函数是雷达模糊度函数的充要条件，并且指出它包括了Wilcox提出的离散的可实现条件。

Electrical Resistance Tomography is a novel cross section measurement technology developed in recent years. It can achieve the visualization measurement of multi-phase media component parameter in the closed pipe and process vessel inside. It is adequate for two/multi phase flow process that the conductive liquid is continuous phase.

电阻层析成像(Electrical Resistance Tomography，简称ERT)技术是近年来发展起来的一种高新检测技术，可实现对封闭的管道或过程容器设备内部多相组份物质参数的可视化测量，适用于两相流/多相流中以液相为连续相的生产过程，是过程层析成像技术中的一个研究热点。

Investment portfolio theory is financial assets, financial assets investment divisibility, mobility and features such as compatibility, so investment in financial assets, do not have to consider the scale of investment, the investment of time constraints, as well as the number of investment projects and other factors, as long as the taking into account the relevance of financial assets, risk, reward and their mutual relations, and on the basis of risk - reward the choice to invest in financial assets to achieve the optimal choice.

证券组合理论的投资对象是金融资产，金融资产投资具有可分割性、流动性和相容性等特点，因此在进行金融资产投资时，不必考虑投资的规模、投资的时间约束以及投资项目的多少等因素，只要考虑各金融资产的相关性、风险、报酬及其相互关系问题，并依据风险——报酬的选择，可实现金融资产投资的优化选择。

Compared with the internationalization of America, Europe and Japan, it's the best choice for China to mix the currency model of Europe and Japan.With the opening up and reform and the development of socialistic economy, although RMB is at the first stage of the currency internationalization, the improvement of our national economy and the macro-economy offer the basis of the RMB' internationalization. Meanwhile, China has formed some conditions which will shorten the progress of RMB's exchangeability.

随着改革开放的深入和社会主义市场经济的发展，尽管目前人民币还处于货币国际化的初级阶段，但我国国民经济实力的壮大和宏观经济条件的逐步成熟，为促进人民币国际化提供了强大的基础和动力；同时，我国已初步具备和正在形成人民币成为完全可兑换货币的一些条件，这些条件将使人民币实现可兑换的进程大大缩短。

The main results in this paper as follows: First, a prototype of a shape-based image database retrieval system is completed, it can receive the query mode both by giving an example image and by sketching the desired object on the screen, Second, five shape-based image retrieval methods are realized; Third, an algorithm based on triangulation for shape-based image retrieval is brought forward. In this algorithm, firstly, the edge of the original image is followed and the candidate corners in the original image are detected. Then the counterpoints of the candidate corners in the result of edge follow are found, and the boundary corners whose counterpoints have been found are queued in the order of their counterpoints in edge follow. After these steps, the boundary corners are triangulated and triangles are obtained which can show the true shape of the original image. Finally, shape feature is obtained by calculating the angle histogram of the triangles.

同时本文中主要完成了以下三方面的工作：完成了一个基于形状特征的图象检索的原型系统，可实现例子图象或徒手绘草图两种查询方式；实现了五种利用形状特征进行图象检索的具体方法，并对其进行了分析比较；并且在继承将三角剖分引入形状检索的思想基础上提出了利用三角剖分进行形状检索的一种新算法：先对原图象进行边界跟踪和角点检测；然后寻找初始角点在边界跟踪中的对应点，并对找到对应点的角点按其对应点在边界跟踪中的顺序进行排序；再对排序后的角点进行德洛内三角剖分，得到能表示目标真实形状的三角形序列；最后计算三角形序列的角度直方图作为形状特征，并进行相似性匹配。

In the basis of comparing the developing projects on the optical interconnection networks, combining with the actual probability of realization, we proposed the scheme of free space optical crossbar interconnection network using spatial light modulator . This interconnect structure is the most powerful single level interconnect network with the characteristics of reconfiguration and non-blocking. It can achieve arbitrary point-to-point link. Even more has it the ability of broadcasting and funnelling.

在比较现有的光互连方案的基础上，结合具体的可实现性，本文提出了使用空间光调制器的自由空间光学交叉开关互连网络的方案，这种互连结构是功能最强的单级互连网络，具有可重构性和非阻塞性，不仅能实现任意点到点的连接，还具有广播和汇集的能力。

The pedrails moving system are chosen as the moving mechanical of the climbing robot for pressure vessel.

本文设计的压力容器检测爬壁机器人采用履带式移动机构，双履带构成爬壁机器人的基本框架；采用永磁吸附方式，将永磁片贴在履带的外表面，可提供足够大的吸附力，结构简单；采用前轮驱动，两个驱动轮分别由电机驱动，当两电动机转速一致时，机器人沿直线行走，当两电动机差速时，可实现爬壁机器人整体转弯。

Magnet, which can offer adsorbability enough to keep the robot working on the vertical walls, is kept close to the outside surface of the pedrails. Front-wheel driving is adopted as the driving system and the two front-wheel are drived by two elctromotors, respectively. When the two motors are running with the same direction, the robot walks straightly. When the two motors are running with the contrary velocity, the robot can swerve.

本文设计的压力容器检测爬壁机器人采用履带式移动机构，双履带构成爬壁机器人的基本框架；采用永磁吸附方式，将永磁片贴在履带的外表面，可提供足够大的吸附力，结构简单；采用前轮驱动，两个驱动轮分别由电机驱动，当两电动机转速一致时，机器人沿直线行走，当两电动机差速时，可实现爬壁机器人整体转弯。

In order to make the crank be continuous rotation one-way and the mechanisms have good transmission quality, the condition of crank existing of the spherical Stephenson Ⅲ six-bar mechanisms is deduced, and the formula of transmission angle is derived.

在研究球面六杆StephensonⅢ型机构轨迹综合的基础上，建立该可调球面六杆机构的多任务轨迹综合方程组，并分析可调球面六杆机构能实现的精确点数、任务数与综合时任选变量数之间的关系。

The results indicated that the regulation of the acidity of raw juice could prevent bacteria contamination and prolong 2～3 d shelf period under homothermal condition (temperature at 29 ℃), the addition of active dry yeast with high temperature tolerance (addition level as 0.1g/100 mL) could realize thick mash fermentation, the fermentation time should be controlled about 28 h, and sugar content of fermenting mash was 20.6 g/100 mL and the alcohol content of matured mash reached 12.8 %vol.

结果表明，调整原汁的酸度，能够防止杂菌污染，在29 ℃恒温条件下，可延长甜高粱榨汁的保存期至2～3 d；耐高温活性干酵母的加量为0.1 g/100 mL，并可实现甜高粱秸秆榨汁的浓醪发酵；发酵时间控制在28 h左右；高糖度发酵醪含糖量为20.6 g／100 mL，成熟醪酒精度达12.8 %vol。

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。