This paper is a study on the elements of the republican citizenship.

本文主要对共和主义公民身份要素进行了研究。

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When carbon - one of the most abundant elements on Earth - is rolled up into tubes, it exhibits some extraordinary properties such as high heat conduction, which the team exploited in the new study.

当碳——地球上最丰富的元素之一——卷成了管状，它呈现出一些特别的属性，例如高导热，这是研究小组在新的研究中发现的。

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Purpose To study the effects of different elements on protein separation during gel filtration.

目的研究凝胶过滤各影响因素对蛋白质分离的影响。

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They are concentrating on a study of stable isotopes - atoms of the same type but with different masses - and trace elements in the birds' feathers.

BBC: Feathers clue to warbler's travels