我们对此制备过程进行了改进,用萃取法代替水蒸汽蒸馏,产率达88.6%。
In our preparation, the process was improved. It is extraction instead of distillation with steam. Yield is 88.6%.
我们对此制备过程进行了改进,用萃取法代替水蒸汽蒸馏,产率达88.6%。
In our preparation, the process was improved. It is extraction instead of distillation with steam. Yield is 88.6%.
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