three-stage

The water goes through three stages of purification.

这水经过 3 个步骤的净化。

On the psychological basis of cognitive therapy theory,identity theory,and narrative theory,bibliotherapy goes through at least three stages: identification,catharsis,insight.

疗以认知疗理论、认同理论和叙事理论为其心理学基础。疗至少经历认同、宣泄、领悟三个阶段。

The former three stages reflect the major process of eclogite facies metamorphism and the latest stages the light overprinting of greenschist facies retrometamorphism at the shallow level of crust.

前三个阶段辉岩相变质作用的主要过程。后一阶段，辉岩在地壳浅部层次绿片岩相环境下遭受轻微的叠加改造。

100 meters races divide into three stages: The acceleration period (until 50-60 meters), the highest speed runs the stage (50 meters to 70 or 80 meters) and the deboost phase.

100米赛跑分为三个阶段：加速阶段（直到50—60米）、最高速奔跑阶段（50米至70或80米）和减速阶段。