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By comparing the calculation methods of Chird Number Parity Progression Ratios Parity Progression Ratios and based on the data of 1‰ national population sampling survey of 2000, this paper calculate the child number parity progressive ratios respectively
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摘要通过孩次递进比计算方法的比较选择，本文运用第五次全国人口普查1‰抽样数据分别计算中国2000年育龄妇女的各年龄别孩次递进比、城乡孩次递进比、区域孩次递进比，揭示中国育龄妇女生育水平的分布状况。 |
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By comparing the computation effects of several common numerical methods (including Symplectic Algorithm), and considering the nature of the movement of the small in the corresponding treatments are provided here to improve the reliability of the computat
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通过对几种常用数值方法（包括辛算法）计算效果的比较，根据小天体运动自身的特性，给出了相应处理措施，从而可提高计算结果的可靠性。 |
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By comparing the contribution of Zhang Jiebin with that of the physicians before or after him, it can be concluded that Zhang Jiebin was the keyman in the development, perfection and spread of the theory of Yin-Yang jaundices, and his work was the turning
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比较张介宾（1563~1640年）和他前后的医家对阴阳黄理论的贡献，可以得出结论：明末张介宾在阴阳黄理论发展、完善和传播中起了关键性作用，他的工作是阴阳黄理论由不被重视转而成为黄疸主流理论的转折点。 |
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By comparing the cut timber at Puebloan sites with the tree-ring records for the area, archaeologists can often date the occupation of the settlements quite precisely.
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考古学者比较了普布罗遗址发现的木材与当地的树木年轮记录，可以推算人类居住在那儿的年代，结果往往相当精确。 |
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By comparing the original process with the optimal result, it is shown that the benefits in energy saving and economy were improved greatly and the optimization technology will be good example for the process of butyl alcohol extraction by azeotropic dist
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工程应用表明：与原工艺相比，优化工艺取得了良好的经济和能源效益，对从水相中共沸精馏提纯丁醇的生产有一定的实际参考价值。 |
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By comparing the results of the evaluation of the options, it showed each program the fit and unfit quality and determined the optimal program for residential district environment design program of the tender to provide the basis.
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比较各方案的评价结果即可看出每个方案的优劣并确定最优方案，从而为住宅小区环境设计方案的招标工作提供依据。 |
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By comparing the results of these simulations, half of which will include the effects of human-induced climate change, and half of which will not, we will investigate the possible impact of human activity on extreme weather risk.
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对比试验的结果,这些模拟测试,其中有一半将因人类活动引起的气候变化,而其中有一半不会,我们将调查可能产生的影响,人类活动对极端天气风险. |
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By comparing the results, it shows that they are compatible.
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压粉成形时塑性式中所包含的材料系数除了σ外不受混合比率的影响。 |
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By comparing the test data of evaporative emission with 2(superscript nd) and 3(superscript rd) phase national standards, the difference and value correlation between them are evaluated.
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同时通过比较国Ⅱ和国Ⅲ试验数据，计算出2个排放水平之间的差异和数值关系。 |
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By comparing the two types of airline networks based on the same network model parameters, it is found that the flight frequency, nonstop traffic and fare given by hub-and-spoke airline network is larger than that by fully-connected airline network, while
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基于相同的网络模型参数，对全连通航线网络和枢纽航线网络中的航班频率、客流量、直达票价、单航班座位数之间的关系进行了研究，结果发现枢纽航线网络中的航班频率、直达客流量和直达票价分别大于全连通航线网络中的航班频率、直达客流量和直达票价，但是不能确定两种航线网络中单航班座位数之间的大小关系。 |
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By comparing the values of the traditional rolling force model and the prediction model by CMAC with the measured ones, the precision of the prediction model by the fuzzy CMAC is much better than that of the traditional rolling force model and is more sui
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通过对传统轧制力模型计算值、小脑模型预报计算值与实测值进行对比分析可知，基于模糊小脑模型神经网络的多辊冷连轧机轧制力预报模型具有较高的计算精度，更适合于多辊轧机在线计算机过程控制的应用，满足现场在线生产的要求，取得良好的板形板厚控制效果。 |
