An estimated 250 million children are failing to learn to read and write by the time they reach the age for grade 4.

Conclusion The case management system for persons with mental retardation should be built to meet their rehabilitation requisitions on different age and grade with various approaches.

结论应建立智力残疾人个案管理系统，多途径地满足不同年龄和残疾程度智力残疾人的康复需求。

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The school system did not release the children's age or grade.

学校方面没有公布孩子的年龄和年级。

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A Probe into Parameters of Age-grade Population Model Group Statistics

分组人口模型中的参数讨论

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This thesis holds the view that the future Middle Class consumers will be segmented much clearly by age cohort, such as young singles, young couples, young nuclear families, middle-aged families and elder families.

未来的中产阶层消费者中将出现更多的年龄细分市场，主要可以分为单身者、年轻夫妇、核心家庭、中年家庭和老年家庭几个部分。

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How should individuals compute which military service age cohort they belong to?

还有兵役年究竟要怎么计算？

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With close to half of the age cohort now acquiring degrees ( up from 8 per cent in 1970), a rising number of graduates fails to earn more than non-graduates.

随着同龄人群中如今有近一半获得学位（1970年时仅为8%），越来越多的大学毕业生赚的钱并不比非大学毕业生多。

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We assume 3 uniform policies: the uniform optimal policy for the median age cohort; the uniform policy optimal for the 6 age cohorts as a whole; the uniform policy meeting the solvency requirements for ABP.

文章假定了三种单一政策：对中位年龄群体参与者最优的单一政策、对6个年龄群体参与者整体最优的单一政策和满足ABP偿付能力的单一政策。

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At each cell, species and age cohort information is required and providing such information for a landscape comprising millions of cells is challenging.

在每一个像元上，模型要求输入物种和年龄组信息。

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Having starred in a production like Detective Chinatown, Liu is already ahead of many actors in his age cohort.

参演了《唐人街探案》这样的影片，刘昊然已经相比不少同龄演员赢在了起跑线上。

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Methods Age cohort models was used to fit data of twenty five years PLC incidence in Qidong to estimate parameters for birth cohort and age effect by means of Bayesian graphical modeling.

方法利用贝叶斯图解模型和年龄队列模型对肝癌发病的年龄、出生队列效应的参数进行估计。

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In the 1960s, he pointed out, 95 per cent of this age cohort had been employed.

他指出，在上世纪60年代，该年龄段美国男性的就业率是95%。

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Experiment on Output Characteristics of Scroll Expander in Small Power Generation System with Low-temperature Waste Heat

小型低温余热发电系统膨胀机输出特性试验研究

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Optimizing the former experimental installation, including of changing scroll expander, lubricating oil and the measuring method of the output of the expander work, the experimental study verified the theoretical results.

对原实验装置采取了更换涡旋膨胀机、润滑油和改变测量膨胀功方法等优化措施。

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The experiments indicate the conclusion that there is the optimal rotate speed for the maximum output of expander.

实验结果也表明了膨胀机存在最佳转速使膨胀机的输出功达到最大。

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Browser/ server-based remote diagnosis system for flue gas expander

基于Browser／Server模式的烟气轮机远程诊断系统

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Technical features of 33 MW flue gas expander and the selection of high temperature alloy material

33MW烟气轮机的技术特点及高温合金材料选用

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Widening the application fields of FCC flue gas expander Technology

拓宽YL型烟气轮机设计技术的应用领域

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Failure analysis and material selection for bellows expansion joint in flue gas expander

烟气轮机管道膨胀节的失效原因与选材

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Anaphylactic shock was suspected, so IV hydrocortisone and a plasma expander were given; this normalised BP but had no effect on her other symptoms.

由于怀疑为过敏性休克，给予静脉注射氢化可的松，补充血容量。血压恢复正常，但她的其他症状没有改善。

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A Brief on Large-sized Weld Pipe Expander

大直径焊管生产用扩径机简介

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