degradation

降级；退化；衰变英释nnthe process by which something changes to a worse condition

1 environmental degradation,环境退化；环境质量下降

2 degradation mechanism,老化机构；降解机制

3 thermal degradation,[化]热降解

4 microbial degradation,微生物降解（作用）

5 soil degradation,土壤退化；土壤破坏

6 oxidative degradation,[化]氧化降解；氧化降解作用

7 degradation product,降级产品，降解产物

8 degradation reaction,降解反应

9 enzymatic degradation,酶催降解，酶促降解

10 biochemical degradation,生物化学降解

11 microbiological degradation,微生物降解

1 真题例句...produced several such examples from Africa and Asia; it also demonstrated that environmental degradation affects the poor more than the rich...第三套CET62016.6阅读理解

2 真题例句...that these extracurricular jobs were an effort on the part of the workers to regain their dignity after suffering the degradation of repetitive assembly line work in the factory...第一套CET62013.6阅读理解

1 ...air pollution, traffic congestion, and the steady degradation of our quality of life..…空气污染、交通阻塞以及我们生活质量的持续恶化。