chemical reaction中的chemical的词性是什么?

Chemical（化工）的英文简写是什么? 一道英文选词填空题A chemical reaction involves the change of chemical chemical bolt和chemical 化工陶瓷的翻译是chemical ceramic 还是 chemical ceramics chemical是什么意思 non-chemical 和chemical free Chemical Engineering and Processing是什么杂志 Chemical and Engineering News 是什么杂志 英语翻译1.The rates of the forword and reverse chemical reaction What is the difference between a chemical reaction and a phy what chemical reaction can be used cleaning up ocean oil spi lements of Chemical Reaction Engineering 4th (H.S.Fogler)课后题