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The asymmetry reduction of ketones has become frontier field of organic synthesis chemistry, and it's also the fast developing and more successful field in recent years.
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近年来,由酮类化合物不对称还原为醇类化合物成为有机合成化学的前沿领域,发展迅速,并取得了许多成就。 |
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The asymptotic behavior of solutions for a class of high order delay partial differential equations is established in this paper. Some asymptotic behaviors of non-oscillatory solutions are obtained.
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摘要研究了一类高阶时滞偏微分方程在三种边值条件下的解的渐近性,得到了其非振动解的渐近性质。 |
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The at earth makes herself hospitable with the help of the grass.
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大地借助于绿草,显出她自己的殷勤好客。 |
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The atanh() function returns the inverse hyperbolic tangent of an angle.
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函数的作用是:返回一个指定角度参数所对应的反双曲正切值。 |
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The atheist says the personality does not survive after death; the religionist says the soul is judged after death and returns to its Creator.
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无神论者说死后人格并不续存;宗教人士说灵魂在死后接受审判并回归它的创造者。 |
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The athlete changed gear (ie suddenly accelerated) and shot ahead of the others.
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该运动员突然加速, 冲到别人前面去了. |
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The athlete cleared the bar easily.
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那位运动员轻松越过横杆。 |
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The athlete did everything he could to break the record.
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这个运动员尽自己最大的努力去打破记录。 |
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The athlete got over the distance in ten minutes.
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那个运动员用了10分钟跑完这段路程。 |
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The athlete has a powerful physique.
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这位运动员体格强壮。 |
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The athlete has a powerful trunk.
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那个运动员身躯强壮有力。 |