fractions形态
fractionn.小部分;少许;分数;片段
fractionating efficiency分馏效率
fractionated coconut oil分馏椰子油
fractionation correction分馏校正
fraction collection trap馏分收集阱
fractionated irradiation分次照射
fractionation radiations分段放射
fraction in lowest terms最简分数
fractionary distillation分馏
fraction transformations形态转化
fraction crystallization分离结晶作用