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The ratio of primary,secondary, and teriary Industries is 20.5:49.6:29.9. At the moment, the primary and tertiary Industries are the major powerhouses promoting economic growth.
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三次产业结构调整为20.5：49.6：29.9，工业和服务业（第三产业）是推动全市经济增长的主要动力。 |
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The ratio of sample size to population size.
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抽样规模与人口规模的比率. |
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The ratio of schoolboys to schoolgirls is 2 to 1.
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男学生和女学生的比例是2比1。 |
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The ratio of the diameter of nozzle to the diameter of vessel has greater effect on the distribution area of high stress in plastic deformation stage.
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对于均处于塑性阶段的结构而言，开孔率的大小对高应力区的分布范围影响较大。 |
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The ratio of the energy yielded by a given amount of ethanol to the energy needed to produce it is called the “energy balance”.
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用“能量平衡”来表示一定数量的乙醇与制造其所耗能量的比率参数，从蜀黍提炼乙醇“能源平衡”值说法尚未一定。 |
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The ratio of the magnitude of an applied shear stress to the velocity gradient that it produces; that is, a measure of a noncrystalline material's resistance to permanent deformation.
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剪切应力数值与其产生应变速率的比值叫粘性，用来衡量非晶材料抵抗永久变形的能力。 |
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The ratio of the numbers of ions outside the match radius to the total ion numbers, not root-mean-square radius or others, is selected as variable to simulate the control of beam halo-chaos in high intensity accelerator.
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摘要文章改变以往习惯于以离子束均方根半径等为控制变量的束晕－混沌模拟控制方法，取匹配半径外离子数与总离子数之比为控制变量，并构造一对数函数控制器，以进行束晕－混沌控制的模拟研究。 |
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The ratio of the volume of all the pores in a material to the volume of the whole.
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孔隙率一材料中孔隙的总体积与整个材料的体积之间的比率 |
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The rational charge based on thermal measurment and controlled management has become an irresistible trend.
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按热计量合理收费和控制管理已是大势所趋。 |
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The rational decision maker is assumed to have a clear problem, have no goal conflict, know all options, have a clear preference ordering, keep all preferences constant, have no time or cost constrains, and select a final choice that maximizes his or her
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理性决策制定者会假设是指一个明确的问题，不存在目标冲突，了解所有的选择，有明确的优先顺序，保持所有偏好不变性，没有任何时间和费用的限制，选出最终的决策，从而使他或她的经济利益最大化。 |
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The rational orientation about community public service is the base of community development.
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对我国城市化进程中社区的公共服务合理定位是推动社区发展的基础。 |
