因此，损失的物种将会损害生态系统的生物地球化学功能的发挥。

Thus, the loss of species will impair the biogeochemical functioning of an ecosystem.

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合成了重要的氨基酸衍生物S-苄基-半胱氨酸．阐述了合成物质的配位化学功能；

S-benzyl-cysteine, an important amino-acid derivative, is synthesized. Properties of coordinate chemistry of the synthesized material are stated in detail.

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科学家们声称已经发现某些植物产生的化学物质有强大的抗癌功能。

Scientists claim to have identified chemicals produced by certain plants which have powerful cancer-fighting properties.

《柯林斯英汉双解大词典》

You can bring any calculator you want, we don't actually have restrictions for calculator types here, but what you can't do, is you can't program any relevant chemical or information about constants in there.

你可以带你想用的任何一种计算器，我们并不限制计算器的类型，但是有一点是不允许的，那就是你不能使用编程的功能来记录,相关的化学常数或其它信息。

麻省理工公开课 - 化学原理课程节选

Some proteins can be switched from an 'off' position where they don't do anything to an 'on' position where they now do something by only a chemical reaction like this where a phosphorous is added.

一些蛋白质可以从关闭状态的,无所作为,到成为开启状态后,执行某种功能,中间只发生了一个引入磷酸基的化学反应

耶鲁公开课 - 生物医学工程探索课程节选

So my goal today is to talk about sort of the basics of the molecules, their chemistry, the function of DNA in cells, sort of basic - the basic side of that.

所以我今天的任务是告诉你们,DNA分子的各种基团,它们的化学结构,细胞内DNA分子的功能

耶鲁公开课 - 生物医学工程探索课程节选