取代脲
- 网络substituted urea; substituted ureas
取代脲取代脲
substituted urea
取代脲,substituted... ... ) disubstituted urea 二取代脲 ) substituted urea 取代脲 ) substituted ureas 取代脲 ...
substituted ureas
二取代脲,disubstituted... ... ) Substituted selenourea 取代硒脲 ) substituted ureas 取代脲 ) disubstituted urea 二取代脲 ...