1. It has been proved in our experiments that (1) Dihydrocoumarin can be formed from the reaction between coumarin and tetralin;
   本实验证明了: (1)香豆素和四氢萘反应生成氢化香豆素;
2. A proof that most of the steps for the reaction of Dihydrocoumarin are consecutive has been given from kinetic experiments and analytical results of the products.
   动力学实验及产物分析结果表明氢化香豆素的大多数反应步骤是按连串反应进行。

声明：以上例句、词性分类均由互联网资源自动生成，未经过人工审核，其表达内容亦不代表本软件的观点；若发现问题，欢迎向我们指正。