托福单词degradation什么意思-degradation词组短语_例句_近义词

degradation什么意思

n.丢脸，落魄，侮辱；损害，恶化，衰退；降解；陵夷，剥蚀

[复数degradations]

degradation词组短语

environmental degradation:环境退化；环境质量下降

degradation mechanism:老化机构；降解机制

thermal degradation:[化]热降解

microbial degradation:微生物降解（作用）

soil degradation:土壤退化；土壤破坏

degradation近义词

[n.]change of state,humiliation

degradation例句

1.Hydroxymethylfurfural(5-HMF)is a degradation product of sugars.

羟甲基糠醛（5-HMF）是糖的降解产物。

2.Thus algae have a promotional function in photo degradation of phorate-and-phoxim.

因此,藻类对湖泊水体中甲拌辛的光降解有促进作用。

3.Lubrification degradation of low sulfur diesel oil causes oil pump abrasion of engine.

由于低硫低芳烃柴油的润滑性能下降,会导致发动机的油泵磨损。