单词：fractionation by distillation
fractionation by distillation的用法和样例：
例句
- The product is separated by distillation into gasoline and gas oil.这种产品是用蒸馏分离出气油和粗柴油。
- In the early work, separation of the products depended on distillation.在早期的工作中，产物是靠蒸馏分离。
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