基本解释制备同根派生 Preparatlon相关词英汉例句In this paper,the preparatlon and application in medicine and pesti-cides etc. of chloroacetyl chloride and its derivatives were briefly described. 介绍了氯乙酰氯及其系列衍生物的研制及在农药、医药等领域的应用概况。sol-gel preparatlon sol-gel法制备Preparatlon更多例句