management in different grades

• 分级管理

management in different grades的用法和样例：

例句

1. The tiered management of sluices shall be determined in project filing of sluice construction.
   水闸的分级管理，在水闸建设立项时予以确定。
2. Dumping wastes into the sea shall follow a graded management based on the categories and quantities of the wastes.
   向海洋倾倒废弃物，应当按照废弃物的类别和数量实行分级管理。