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The ratio between carbon 12 and carbon 13 is roughly 90 to one in the atmosphere, but it can differ appreciably in volcanic gases.
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大气中碳12和碳13的比例大约是90:1，但在火山气体中的比例往往大不相同。 |
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The ratio between the threshold retinal irradiance for light damage to the solar spectral irradiance at each wavelength provides a starting point for this.
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每个波长光强度的极限值,以及对应的太阳光强度,所得的比例(估且称为极限比例),可以作为安全系数的计算起点. |
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The ratio changed when Umbridge became Defense Against the Dark Arts professor in OP - but only until Dumbledore brought in Firenze after the sacking of Trelawney.
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在《凤凰社》里，这个平衡因乌姆里奇担任黑魔法防御术教师而偏斜－－但等邓布利多在特里劳妮被辞之后让费伦泽教占卜课时，这个平衡又恢复了。 |
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The ratio exportable boxes/harvested bunches, also increased indicating that more bananas of export quality were being harvested.
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出口货箱数/收获蕉串数的比值也增加，说明达到出口质量的香蕉更多。 |
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The ratio in question correlates with hormone levels promoting maximum female fertility and health, so men who prefer curvy women will have more children.
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腰臀比例和荷尔蒙激素水平相关，荷尔蒙又把女性生育能力和身体健康推向极致，因此，喜欢曲线女人的男人会有更多孩子。 |
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The ratio is about 7 overseas to 3 domestic.
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七成外销，三成内销。 |
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The ratio of 5 to 10 eaqules that of 1 to 2.
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5与10之比，相当于1与2之比。 |
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The ratio of 5 to 10 is equal to 1 to 2.
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5与10之比，相当于1与2之比。 |
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The ratio of boys to girls in this class is two to one.
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护理人员和医生的比例为二比一。 |
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The ratio of envelope to floor area is such to make even a doubling of the cost of the envelope marginal when compared with the cost of producing the structure of the building.
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相比于建筑结构生产的费用，维护结构与地板的比率使得维护结构的费用增倍。 |
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The ratio of fixed local telephone income and long distance telephone income in the total operation income decreased by 2.49% and 1.06% respectively compared with the same period in 2005, while the ratio of mobile telecommunication income and data communi
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固定本地电话和长途电话业务收入占总收入的比重比2005年同期分别下降了2.49%和1.06%，而移动通信和数据通信业务收入所占比重则分别上升了2.89%和0.71%。 |
