在筛选指导下进行活性物质分离、纯化的翻译：Isolation and purification filter under the guidance of active substances 什么意思？中文翻译英文，英文翻译中文，怎么说？

青云英语翻译

In the screening of active substances under the guidance of the separation, purification

Isolation and purification filter under the guidance of active substances

Carries on the active material separation, the purification under the screening instruction

psychoactive substances carried out under the guidance in the filter separation, purification

Isolation and purification filter under the guidance of active substances