文中还对不同元素化合物的改性机理作了初步探讨。

The mechanism of modification by different compounds are briefly discussed.

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摘要杂化轨道理论是大学无机化学、结构化学课程的重要内容，是后续元素化合物学习的基础。

Abstract Hybrid orbital theory is an important content of inorganic chemistry and structural chemistry in college text book, and it is the basis for further study of element compounds.

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水是含有氢元素和氧元素的化合物。

Water is a compound containing the elements hydrogen and oxygen.

《新英汉大辞典》

What about sources of protein, that and carbohydrate for you, and how do those look and where are you getting those from?

那蛋白质的来源呢,还有碳水化合物,这些都长什么样,你从何摄入这些元素

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

Well, I need to write the reaction that forms that compound from it's elements, right?

我需要写出从元素单质生成,这种化合物的反应，对吧？

麻省理工公开课 - 热力学与动力学课程节选

Atoms of different elements combine in simple whole number ratios to form compounds.

不同元素的原子,以简单的整数比化合成化合物。

麻省理工公开课 - 固态化学导论课程节选