1、

It is not known how unrepaired DNA damage accelerates ageing or its relevance to natural ageing.

现在还不清楚未修复DNA损伤是如何加速老化或其与自然老化关联性.

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2、

Treated in the artificial ageing condition of 100% relative humility and 40 ℃ for 5 days, the ageing degree is equal to that during one summer natural temperature ageing condition.

在100%的相对湿度、40℃的人工老化条件下处理5d左右,对种子的老化程度与一次自然室温越夏的老化程度大致相当。

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3、

Relationship between Natural Ageing and Artificial Ageing of Graphic Arts Films

印刷胶片的自然老化与人工老化的关系

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4、

The yield strength is reduced by 10~ 20 MPa after natural ageing and it can be simulated by artificial ageing ( 100 ℃× 2h or 200 ℃× 1h).

自然时效后屈服强度下降10~20MPa,用人工时效可以模拟自然时效,工艺是100℃×2h或200℃×1h。

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5、

Characteristic: Purely natural plant essence, specially include the anti-ageing element, gush out gently, can bring the perfect maintenance result.

纯天然植物精华素,特含抗衰老元素,轻轻一喷,即可带来完美的修复效果。

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6、

An EXAFS study for structure relaxation of cu_ ( 55) zr_ ( 45) metallic glass during natural and artificial ageing

天然和人工时效Cu(55)Zr(45)金属玻璃结构弛豫的EXAFS研究

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7、

The structure change of Cu_ ( 55) Zr_ ( 45) metallic glass during natural and artificial ageing was investigated with EXAFS method.

本文应用EXAFS结构分析法研究了Cu(55)Zr(45)金属玻璃经天然和人工时效后引起的结构变化。

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8、

In the paper, the results of experiment are provided, the micro-mechanisms of both natural and artificial ageing are studied, and a new way to improve the mechanical properties of zinc-containing alloys is proposed.

文内提供了实验结果,并对自然时效和人工时效的机制进行了研究,为提高锌基合金型材的力学性能开拓一条新途径。

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