The difficulty for many goods producers, Mr Stroud says, is that older consumers do not wish to be reminded of their age.

A new tea plant must grow for five years before its leaves can be picked.At30 years of age, it stops producing leaves.

新的茶树必须生长五年才可以采摘茶叶，三十年的茶树，茶叶一般不再生长。

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With one-quarter of the population likely to be of retirement age by 2030, this means several million more Britons heading to silver cities across the globe, taking billions of pounds of pensions with them.

到2030年，可能有四分之一的英国人口将达到退休年龄，这意味着又会有数百万人带着数十亿英镑的退休金前往全球各地。

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Of the roughly 865 million women who will be of working age ( between the ages of 20 and 65) by 2020, according to the International Labour Organization, 812 million live in emerging and developing nations.

根据国际劳工组织（International Labour Organization）的数据，到2020年将有约8.65亿的工作年龄（20-65岁）女性，其中8.12亿居住在新兴国家和发展中国家。

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Take whatever cap you have, whatever hat you have and throw it in the air, because you, my friends, you are graduates in the most powerful time to be coming of age,

不管你有什么帽子，把它扔到空中吧，因为，我的朋友们，你们是在最强大时刻即将成人的毕业生，

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Further, the absolute concentrations of these metabolites in EPS appear to be independent of age, increasing the potential utility of these markers due to elimination of age as a confounding variable.

另外，EPS中这三种代谢物的绝对浓度看起来与年龄无关的。由于不需要年龄作为混杂变量，增加了这些标记物的潜在效用。

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In 1992, the author found fossil crinoid stems in crystalline limestone at Xia-zhuang, Wenchuan, which were determined to be of Ordovician age.

笔者1992年在汶川下庄的结晶灰岩中采到了海百合茎化石，证实其时代属奥陶纪。

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In March of the coming school year, Ron will turn seventeen, and will therefore be of age in the wizarding world and old enough to obtain a license to apparate.

在即将到来的学年的3月，罗恩就17岁了，因此到了在魔法世界里可以获得幻影显形证书的年龄。

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The absence of identification proving him to be of age.

缺乏足以证明他已成年的身份证明。

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Modelling and Controlling of Basis Weight and Moisture Content for Papermaking Process

造纸机定量水份计算机控制的建模与控制

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A Microcomputer Control System of the Basis Weight Moisture in a Paperboard Machine

纸板机定量水分微机控制系统的开发与研究

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The Influence of Basis Weight on Opacity and Light Absorption Coefficient of Paper

定量对纸张不透明度及特定光吸收系数的影响

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Simulation of Infinite Horizon Predictive Control in Basis Weight and Moisture Content Control System

定量水分的无穷时域预测控制仿真研究

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Basis Weight and Moisture Computer Control of Superthin Capacitor Paper Machine

超薄型电容器纸定量水份计算机控制

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Trouble analysis on basis weight drift in QCS control system

QCS控制系统定量漂移的故障分析

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Determination of basis weight of paper

纸的公制重量测定法

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The Research on Fault Diagnosis Method for Basis Weight Sensor of Paper with Dual Probe

一种双探头纸张定量传感器故障诊断方法研究

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Reduced Order Modeling and Control of Cross Directional Basis Weight on Paper Machines

纸机横向分布定量降阶建模与控制

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A Computer System for Basis Weight and Moisture Control of a Paperboard Machine

纸板定量／水分在线计算机控制系统

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Basis Weight and Moisture Content Analysis for Papermaking Process

造纸过程定量水份解耦控制分析

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Study on multivariable predictive functional control of basis weight& moisture

定量水分预测函数多变量控制的研究

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