| 释义 |
fractional distillation
[ˌfræk.ʃən.əl.dɪs.tɪ'leɪ.ʃən] noun uncountable specialized
■the chemical process of separating different substances that have different boiling points by heating a liquid mixture until it turns into gas and then cooling and collecting each substance separately 分馏（化学过程，将液体混合物加热，使其中沸点不同的各个物质气化，再分别冷却收集，从而分离各个成分） |