Results Water distillation method was good for the extraction of essential oil.
结果水蒸气蒸馏法更有利于白术挥发油的提取；
The total oil of the mint microencapsulations was measured by steam distillation method.
采用水蒸气蒸馏法测定了微胶囊化薄荷油的总油。
The purification methods of phosphine include adsorption method, low temperature distillation method and membrane separation method etc.
总结了磷化氢的精制方法，主要有吸附法、低温精馏法和膜分离法等。
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