English translation for "national degradation"

自然降解
自然退化

Related Translations:

drug degradation:  药物降解

system degradation:  系统性能降低

purine degradation:  嘌呤降解

uv degradation:  紫外线退化

mechanical degradation:  机械降解

stream degradation:  河道刷深

valley degradation:  谷地陵削作用

metal degradation:  金属降解

cyclic degradation:  周期衰化

fluid degradation:  流体降解

Similar Words：

"national defense service medal" English translation, "national defense service medal ribbon" English translation, "national defense standard" English translation, "national defense the" English translation, "national defense university" English translation, "national del credere office" English translation, "national demand" English translation, "national demand and supply" English translation, "national demography" English translation, "national dental association" English translation