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The ratio of outpatient to inpatient cases was highest among young women (ranging from 5 : 1 to 6 : 1).
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年轻女性中门诊患者对比住院患者的比率最高（为从5:1到6:1)。 |
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The ratio of output power from an amplifier system, to the input power. Gain is normally measured in decibels.
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放大系统的输出功率与输入功率之比,增益通常用分贝表示。 |
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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。 |
