cyclopent造句
造句与例句手机版
- In Piancatelli's proposed mechanism, the formation of the carbocation due to a protonation-dehydration sequence results in the two hydroxy groups being " anti " allowing for the " trans "-4hydroxy-5-substituted-cyclopent-2-enone from a 4? electrocylization ring closure . center
- It's difficult to see cyclopent in a sentence. 用cyclopent造句挺难的