ability of reduction and precipitation的用法和样例：
- They were classified and treated according to their grade of reduction and degree of arthrosis.
- The temperature ranges of reduction and nitrogenization were made certain by the analyzing of XRD and TG curve in different temperature and atmosphere.
- Artemether was synthesized from arteannuin by steps of reduction and etherication reaction.
- Accuracy of reduction and hardware placement is confirmed radiographically (Fig. 3).