quaternary

quaternary

[kwə'tɜ:nərɪ]

n.四，四个一组;

adj.第四组中的组成部分，四进制的;

复数： quaternaries

例句:

1、

The electronic structure of a quaternary alloy has been investigated using EHT band calculation method.

用紧束缚能带计算方法(EHT)研究了标题多元合金的能带及电子结构.

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2、

A great many proteins, especially enzymes, are oligomeric and consequently possess quaternary structure.

很多蛋白质尤其是酶类, 是低聚物,因此拥有四级结构.

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3、

The silicone quaternary was synthesized reaction of-H silicone, unsaturated-ether, chloroacetic acid, dimethylamine.

以低含氢硅油 、 不饱和聚醚 、 一氯乙酸和二甲胺为原料, 制备得阳离子有机硅油.

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