1) light element compound
轻元素化合物
2) the element chemical compound
元素化合物
1.
The chemical experiment is the lively reconstruction of the element chemical compound knowledge and Explore the laws of chemical reactions , the chemical calculation is quantitative research of the element chemical compound knowledge, Without the element chemical compound knowledge, the other knowledge of the chemistry just likes the water without a source.
元素化合物的知识是中学化学的核心知识,为化学实验和化学基本概念、基础理论提供具体、感性的认识。
4) the propertics of element and compond substances
元素化合物性质
5) Inorganic element compounds
无机元素化合物
6) elementary organic compounds
元素有机化合物
补充资料：轻元素
1.原子量较小的元素，如氢﹑氦等。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条