常見例句雙語例句The reactivities and selectivities of aliphatic and aromatic free-radical(substitution)reactions were explained semi-quantitatively by the perturbation molecular orbital theory.從而用微擾分子軌道理論半定量地解釋了脂肪族的遊離基取代和芳香族的遊離基取代反應(yīng)的反應(yīng)性和選擇性。 返回 free-radical substitution