reducing substances

• 还原物质

reducing substances的用法和样例：

例句

1. Moreover,the microorganism which was brought by permeable surface water degraded the primary kerogen in sedimantary rocks and could produce reducing matters.
   同时，地表下渗的大气降水携带了细菌类微生物，对原生有机质进行生物降解，并生成硫化氢类还原物质。