abnormal two-stage curve的用法和样例：
- Acrylate, DDBSA and DMF were used to react under a two stage.
- A two stage growth process for metastable pits was suggested.
- The Bretton woods system broke down in two stages.
- The newly developed cooling system has a high efficient two stage radiator.
- The surgery consists of two stages.
- The evacuation was to be carried out in two stages.