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On the basis of introducing the principle of the TF/AR radar, this paper analyzes the conditions of effectively jamming the TF/AR radar in typical tactical act of hedgehopping, which include the disposition and quantity of electron reconnaissance/jammer,
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摘要在介绍地形跟随／回避雷达工作原理的基础上，通过设定典型超低空突防飞机的战术行动，分析了对雷达实施有效干扰所必须具备的条件，包括侦察／干扰机的部署、数量要求等；并计算了在传感器／摆放（投掷）式干扰机模式下对装备的性能要求，得出了在目前技术条件下，对地形跟随／回避雷达实施干扰在技术和战术上都是困难的。 |
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On the basis of introducing the whole structure and descriptive format of the new edition of Descriptive Rules of Bibliographic References,the paper is intended to point out its flaws and what need be modified.
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文章在介绍新版《文后参考文献著录规则》整体结构和著录格式的基础上,指出其主要修订之处和不足。 |
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On the basis of investigated materials in the plot, the dynamics of edge dispersal of Hippophae rhamnoides subsp. sinensis clone population was studied.
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以样地调查资料为基础，分析了中国沙棘无性系种群的林缘扩散规律及其生态学意义。 |
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On the basis of investigating analytic proposition and synthetic proposition, the paper gives some comments on Quine's critique on distinction of the two propositions, illustrating that Quine's critique cannot deny their distinction and only show they are
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摘要在考察分析命题与综合命题的基础上，对奎因分析命题与综合命题之区分的批判进行了评述，说明奎因的批判并不能否认分析命题与综合命题的区分，而只是表明了“分析命题”与“综合命题”是两个典型的模糊概念，因而需要运用模糊思维方法去把握它们既相对区分又相互贯通的辩证机理。 |
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On the basis of investigation on the current situation of carrying out health education in primary and high schools in Linxia Hui Autonomous Prefecture, the author analyzes its existent problem and disadvantageous factor, providing some worthy information
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摘要在对临夏回族自治州中小学开展健康教育的现状进行了调查的基础上，分析其存在的问题及不利因素，为促进临夏回族自治州及少数民族地区中小学健康教育的开展提供有价值的信息。 |
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On the basis of kinematic analysis of the tripod universal joint, this paper analyses the motion errors of this system, which related to the manufacturing error, installation error, bearing clearance, and so on.
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摘要在三叉杆式万向联轴器的运动分析的基础上，充分考虑到机构制造和安装的不精确性，运动副轴承的间隙，作用于连杆上力及温度变化引起的连杆变形等因素，进行了三叉杆式万向联轴器运动误差分析。 |
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On the basis of kinematics analysis and model transformation, an error equation of the robot kinematics parameter is established with numerical optimization, and the optimal design for kinematics parameter is realized, which effectively increases the repo
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在运动学分析和模型变换的基础上，运用数值优化技术建立了机器人运动学参数的误差方程，实现了运动学参数的优化设计，有效提高了机器人的重复定位精度。 |
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On the basis of lithofacies palaeogeographic map, the sedimentary and lithofacies palaeogeographic characteristics of the middle Yangtze region during the Late Sinian and Early Cambrian are also described.
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晚震旦世岩相古地理格局由碳酸盐台地（鄂中台地）和南边的台缘盆地组成。 |
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On the basis of magnetic fluid sealing principle and micro-nano characteristics, this paper studied and designed a kind of new micro-nano magnetic fluid sealing structure that could satisfy more nicely the sealing requirements of stirring shaft of high sp
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该文根据磁性流体密封原理和微纳米特性，研究设计了一种能更好地满足高速大长径比压力反应釜搅拌轴密封要求的新型微纳米磁性流体密封结构，并通过实验对其相关参数进行了优化设计。 |
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On the basis of mass unit matrix analytical method, taking thermal system of steam power-generation unit as study object, a new method of feed-water enthalpy rise distribution in regenerative system has been put forward through vigorous mathematical deduc
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摘要以质量单元矩阵分析法为基础，以火电机组的热力系统为研究对象，通过严谨的数学推导，提出了回热系统给水焓升分配的新方法。 |
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On the basis of more detailed and complete data, and more reliable methods, WHO now estimates that the case fatality ratio of SARS ranges from 0% to 50% depending on the age group affected, with an overall estimate of case fatality of 14% to 15%.
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通过更详细和完全的数据以及更可靠的方法，WHO现在估计SARS病死率的范围在0%到50%之间，随感染的年龄组变化，整体估计死亡率为14%到15%。 |
