在密度和组成方面，这两个群体有显著的不同。

Other dimensions along which the two groups differ markedly are density and composition.

youdao

你必须找出那些颜料里有什么，了解它们的组成，这需要实验室的工作——真正的探测性工作——也就是光谱学。

You've got to find out what's in those pigments, learn their composition, and that requires lab work—detective work really—in a word, Spectroscopy.

youdao

该管理计划有4个主要组成部分。

The management plan has four main components.

《柯林斯英汉双解大词典》

So he just says that there are really two organizing principles or overriding concerns in the Priestly traditions and the Priestly materials regarding sacrifice.

克洛文说，实际上在祭司的传说和有关文献中，关于献祭,有两个组成法则,或者说主要的关注点。

耶鲁公开课 - 旧约导论课程节选

so you can see that there is going to be two sets in antibonding, three sets in bonding for a net of one, giving us the single bond.

因此你能看到,反键轨道上有两组，三组成键，得到一组净成键，所以成的是单键。

麻省理工公开课 - 固态化学导论课程节选

Then we're going to take the newly formed vectors that now are recombinant, they're combined from at least two different sources.

然后就能得到这些重组的新载体,它们至少有两个不同的组成来源

耶鲁公开课 - 生物医学工程探索课程节选