stage development

• 分期发展,分级开发,阶段发育

stage development的用法和样例：

例句

1. The differences of the deposits are only the differences on the completion and the intensity of the development of the metallogenic stages.
   矿床之间的差异只是成矿阶段系列发育的完整程度和成矿阶段发育的强度不同。