secondary pore zone

• 次生孔隙带

secondary pore zone的用法和样例：

例句

1. And water rich organic acid discharged from rock when gypsum changed into anhydrite, which dissolves part of the rock and form secondary porosity.
   同时，石膏向硬石膏转化时，排出大量富含有机酸的水，有利于形成次生孔隙带。