“biological degradation”简单造句，biological degradation造句子

2、The best biological degradation ecological condition was obtained through orthogonality experiment.

1、In stock yards ammonia is formed by biological degradation.

3、Study on biological degradation of algae and microcystins by means of enrichment microbes on artificial medium;

5、It should be noted that disinfectants should not be poured into pits or tanks of latrines that dispose of excreta by biological degradation.

4、In the case of natural fibers biological degradation will occur when the fiber is retained with the sludge in the treatment plant.