multistage crystallizer

例句：

1. 1. The company has implemented a multistage training program for its employees.
   该公司为员工实施了一个多阶段的培训计划。
2. 2.The project is divided into several stages to ensure progress and completion.
   该项目分为几个阶段，以确保进度和完成。
3. 3. The process involves multiple stages of testing before the final product is released.
   这个过程包括在最终产品发布前进行多个阶段的测试。