chemical plant laboratory的意思|示意

False. There is no difference. A vitamin has the same properties and specific chemical structure whether made in a laboratory or taken from plant or animal parts.

错误。没有区别，不管是在实验室制造的还是从动植物身上提取出来的维生素，其性质和具体的化学结构都一样。

Objective: to develop a simple and sensitive method for screening the anti tumor active ingredients of medicinal plant in chemical laboratory.

目的：建立一种在化学实验室内进行的简便易行的抗肿瘤活性成分的检测方法。