“小分子”用英语怎么说

在反应堆里,大分子裂变为小分子.Inside the reactor the large molecules are cracked into smaller molecules.大分子裂变为小分子.The large molecules are cracked into smaller molecules.裂化是使较重的低挥发性的碳氢化合物分裂成较小分子的化学分裂.Cracking involves the chemical brea...