My chemistry teacher Mrs. Louise usually gave us the instruction paper the night before the lab class and let us read it.

我的化学老师路易丝夫人通常在实验课的前一天晚上给我们说明书，让我们阅读。

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He retook the chemistry paper last week.

她在上周补考了一次化学。

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"It's almost like changing one atom into another atom," said Guy Bertrand, a UCR chemistry professor who co-authored a paper on the new compound.

加州大学河滨分校的一位和他们合作撰写关于这个新化合物的论文的化学教授盖伊·贝特兰德(Guy Bertrand)说：“这几乎就像是把一个原子变成另一个原子。”

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That year a German chemistry journal published a paper which, without naming Symyx, clobbered its approach, stating that tests done in small quantities could not be reproduced in larger batches.

FORBES: Upstart Symyx is shaking up the stodgy chemicals industry.

The result, they claim in a paper that will appear this month in the Journal of Physical Chemistry, is a nanofibre material with an extremely high ratio of surface-area to volume.

ECONOMIST: Space-age soot