The variable chemical group in an amino acid.

氨基酸中一种可变的化学基团。

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A chemical group comprising nitrogen bound to two hydrogen atoms.

由氮原子与两个氢原子结合形成的化学基团。

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An organic acid containing an amine (ammonia-like) chemical group. Amino acids are put together by your body in highly specific ways to manufacture proteins.

一种包含胺基(具有氨水性质的化学基)有机酸。人体以特殊的方式将氨基酸装配加工成蛋白质。

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She has said the work is like a group portrait that maps a society's chemical use.

VOA: special.2009.07.17

I'm in the American Institute of Chemical Engineers group at Yale.

我参加了耶鲁的美国化学工程学会。

重建社团小组 - SpeakingMax英语口语达人

These are an amine group, an acid group (hence the name), a hydrogen atom, and a fourth chemical group that can be any one of 20 different clusters of atoms.

ECONOMIST: Folding stuff

In September 2011, fuel and chemical Group Ultra, holding that controls gas stations in Brazil, launched the energy drink Mood, which is commercialized in about 1000 stores near gas stations around the country.

FORBES: What is Brazil's Most Attractive Sector?

O. of its Chemical Technology Group.

NEWYORKER: Covert Operations