It reveals some characteristics of age structures in scientific collaboration of control theory in China.

揭示了我国控制理论领域科学合作年龄结构的一些特征。

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The control people were recruited according to the characteristics of age, gender and educational levels of experimental group.

根据获得的实验组被试的年龄、性别和教育水平等特征，招募本研究的对照组被试。

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In contrast to France's actions, Denmark's fashion industry agreed last month on rules and sanctions regarding the age, health, and other characteristics of models.

与法国的行动形成对比的是，丹麦时装业上个月就模特的年龄、健康和其他特征的规定和制裁达成了一致。

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One of the great characteristics of our age, one that no doubt will be a subject of amusement to future generations, is our post-modern desire to show the guts of everything.

FORBES: The Unhidden Machine

There are no characteristics in terms of age, sex, social or cultural background -- the only characteristic is to live relatively close to the area where the projects are carried out, in Paris.

CNN: Bone people: The explorers of the Parisian catacombs