v.生物降解

The new skin appears to work better than preious skin substitutes that biodegrade in situ after a few weeks. 研制的新皮似乎較以前的皮膚替代品好，因為新皮在移植后數(shù)周可原位生物降解。

It is an unlikely application, but researchers in China have discovered that chicken manure can be used to biodegrade crude oil in contaminated soil. 這看上去像一個不可能的應(yīng)用，但是中國的科學(xué)家發(fā)現(xiàn)了雞糞可以用于生物降解受污染土壤中的原油。