查询词典 characteristic set
- 与 characteristic set 相关的网络例句 [注:此内容来源于网络,仅供参考]
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The thesis can be divided into five parts as follows: First, the structural characteristics of finned-pipe evaporator are analyzed. After selecting suitable microelement controller, the heat-transfer and mass-transfer processes are analyzed for every microelement under the conditions of dryness, wetness and frostiness. Based on previous equations, some parameters of frostiness are confirmed and the frost-growing model is set up under frost condition. Some hypotheses are postulated and with the help of the equation of mass-conservation, energy-conservation and momentum-conservation, the evaporation model which fits in the dynamic simulation is built, which set a solid foundation for system simulation. Second, the starting and stopping behaviors under disturbed condition are analyzed and calculated by using the dynamic concentrative parameter model, which gives some advice to better prescribe refrigeration system and set theoretic foundation for carrying out automatic control of refrigeration system. Third, the normal running process is analyzed and calculated by means of rational matching theory, which gives some advice on how to better understand the parameter change under steady state and the affection of inlet-parameter on evaporator. Fourth, the simulation software with dynamic characteristic is designed, which can be applied to calculate thernio-parameter of cryogen, air humidity and frost thickness under different initial and boundary conditions, and to carry out dynamic simulation under conditions of dryness, wetness and frostiness, at the same time, to achieve detection and simulation at any stage from starting to stopping.
本文的主要内容如下:1对翅片管蒸发器结构特点进行分析,选取适当的微元控制体,就干、湿和霜工况下对每个微元分别进行传热传质分析,基于经验关系式确定霜的有关参数,对于霜工况下的霜生长建立模型,经适当假设,运用质量守恒、能量守恒和动量守恒方程建立适合动态仿真的蒸发器数学模型,为系统仿真奠定基础; 2对蒸发在大扰动下的开、停机过程,运用动态集中参数模型进行分析和计算,为更好地描述制冷系统运行的全过程奠定基础,同时也为制冷系统实现自动控制提供一定的理论基础; 3对蒸发器正常运行过程,运用动态分布参数和参数间定量耦合的观点来分析和计算,为更好地了解稳态工况下各点参数的变化情况及各入口参数对蒸发器动态特性的影响即蒸发器性能对各参数变化的敏感性; 4编写翅片管蒸发器动态特性仿真计算程序,可以计算不同边界条件和初始条件下的制冷剂热力参数、空气温湿度和霜厚度分布场,实现对翅片管蒸发器在干、湿和霜工况下的动态仿真。
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On the basis of the characteristic and relation of highway transportation and economics, this paper put forward some indicators that externalize the characteristic of highway transportation in Guangxi , and confirm an indicator set for the modernization of with foundation of analysis and selecting method.
本文从公路交通系统与经济发展的特点及关系出发,提出了体现广西公路交通特征的有关指标,并在认真分析和采用合理方法筛选的基础上,确定了广西公路交通的现代化指标。
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Afterwards, he modestly studied to the senior entertainer, and tried to find out a set suited oneself characteristic the clay sculpture technique, created has the individuality characteristic, the full of beauty and significance mudskipper series work.
后来,他虚心向老艺人学习,并摸索出一套适合自己特点的泥塑技艺,创作出具有个性特点、妙趣横生的泥猴系列作品。
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Therefore, the characteristic of limited liability corporation rejects shareholder qualification be inherited limitlessly, and nonsupport the heir be shareholder unconditionally. Then we should set up certain conditions for inheritance to conform to the characteristic of limited liability corporation.
因此,有限责任公司的特性排斥股东资格这一身份不受限制的"当然继承",不支持死亡股东的继承人无条件地成为新股东,而应对此设置一定的条件来照顾有限责任公司的"人合性"和"封闭性"。
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It describes the color characteristic of device accurately through constructing the geometric model and builds gamut mapping model in the section plane of gamut by dissecting. The improvement of image characteristic obtaining at real time satisfies the application and supports the adaptive gamut mapping. The sampling and visualization of sample set in different color space show the optic difference and give the error analysis of the color conversion between them. Based on the study of the color relation among the color spaces, the visualizing color can be created automatically with conversion formulas.
该工具在获取彩色输入/输出设备彩色特性的基础上,通过构建几何模型对设备色域进行了精确描述;利用对色域的剖分操作,构造基于剖面的色域匹配模型;通过改善图象彩色特性获取的实时性,使其能有效获取图象源的特征并满足色彩管理的应用需求,支持了自适应色域匹配;对不同色彩空间样本的采集和对比显示有效体现了色彩的视觉差别,并提供了它们之间转换的误差分析;在探究不同色彩空间的颜色对应关系的基础上,实现了可视化的真彩颜色的自动生成,使可视化颜色更加逼真。
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Moreover, the theory overall looked that, still wasat the rough stage, first was its basic parameter determination alsomust depend upon many experiences algorithms and the empirical data, roller distance, roller diameter, Next is many technical phenomenalike spiral curved waste product, the noise, theslanting roller characteristic, the slanting roller rollershape characteristic, the distortion match characteristic andso on all lacks the theory elaboration; Is once more the theoryconcise quality is insufficient, set of formulas not only cannotinclude each kind of cross section molding, even cannot include thesimilar cross section but the size and the material quality differentwork piece, like the curved distance and so on all lacks the generalexpression_r with the curvature.
另外,就矫直理论的总体来看,仍然处于粗糙阶段,首先就是其基本参数的确定还要依靠许多经验算法和经验数据,如辊数、辊距、辊径、压弯量及矫直速度等;其次是许多技术现象如螺旋弯废品、矫直缩尺、矫直噪声、斜辊矫直特性、斜辊辊形特性、拉弯变形匹配特性等都缺乏理论阐述;再次是理论的概括性不够,一套公式不仅不能包括各种断面型材,甚至不能包括同类断面而尺寸和材质不同的工件,如弯距和矫直曲率等都缺少通用表达式。
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A new concept of convex set and its some characteristic properties This paper give a new definition, the support direction of a boundary point of convex set. Then use it to prove a characteric properties of convex set and some other characteric properties.
1凸集的一个新概念与凸集的某些特征性质本文引进支持方向这一新概念并利用它来证明凸集的一个特征性质,最后再用它来证明凸集的另外一些特征性质。
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The research contents of this subject are mainly: Proposing the overall scheme of the soft firing technology, than confirm the best scheme; On the basis of best scheme , set up the mathematical model of soft firing system, and set up the interior ballistic trajectory calculating model among MATLAB/Simulink, set up soft the three-dimensional dynamics model of firing system among ADAMS; Go on joint simulation, simulating the characteristic curve of bore pressure and the sport law of piston and shot; Through adjusting the parameters such as piston quality、the diameter of unilateral valve、 charge weight、charge form coefficient and the delay time of lighting fire etc to make the soft firing system reach the best state of dropping the composition of forces of gun bore and increasing initial velocity of pill.
论文的研究内容主要是:提出软发射技术总体方案,确定最佳方案;在最佳方案的基础上,建立起软发射系统的数学模型,并在MATLAB/Simulink中建立内弹道计算仿真模型,在ADAMS中建立软发射系统的三维动力学模型;进行联合仿真,模拟膛压特征曲线及活塞和弹丸运动规律;通过对活塞质量、单向阀直径、装药量、药形系数、点火延迟时间等参数进行调整,使软发射系统达到炮膛合力下降、弹丸初速提高的最佳状态。
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This paper carries on automobile smooth-going characteristic test, firstly using data gathering system and portable computer. Automobile smooth-going characteristic is synthetically evaluated according to IOS26311CD-1991. Automobile smooth-going characteristic body health evaluating data is set up under the pulse.
本课题首次运用国际先进的数据采集系统和便携式笔记本电脑对汽车进行在线平顺性试验,根据国际标准ISO2631/CD-1991对汽车平顺性进行综合评价,首次提出了脉冲输入下汽车平顺性健康评价指标,为脉冲输入下汽车平顺性的质量评价提供了直接的判断依据。
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Strengthen the automatic control type class to set up and is set up Guarantee the peace and steadiness of railway transportation Summary: The automatic control type class sets up and is set up, but it is " human-oriented " to insist Management idea,it combine actually with homework characteristic production of teams and groups, through setting up and amplifying there aren't quality, to make the automatic control type class and set up and have the implementing method, promote worker's self- management, selfdiscipline in homework, examine oneself and implement the improvement of respects such as the standardized homework,etc.
加强自控型班组建设确保铁路运输安全稳定摘要:自控型班组建设,就是坚持&以人为本&的管理理念,结合班组的生产实际和作业特点,通过建立健全素质培训机制、优胜劣汰机制、激励约束机制,来制定自控型班组建设实施办法,促进职工在作业过程中自我管理、自我约束、自我检验和按程序自觉落实标准化作业等方面自控能力的提高,实现班组在安全生产等各方面的自治自控,达到铁路运输安全稳定的目的。
- 推荐网络例句
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I am accused of being overreligious," she said in her quiet, frank manner,"but that does not prevent me thinking the children very cruel who obstinately commit such suicide.""
客人们在卡罗利娜·埃凯家里,举止就文雅一些,因为卡罗利娜的母亲治家很严厉。
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Designed by French fashion house Herm è s, this elegant uniform was manufactured in our home, Hong Kong, and was the first without a hat.
由著名品牌 Herm è s 设计,这件高贵的制服是香港本土制造,是我们第一套不配帽子的制服。
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Do not 'inflate' your achievements and/or qualifications or skills .
不要 '夸大' 你的业绩或成果,条件或者技能。