Objective: to study the active principles of Radix Angelicae Pubescentis and to set up a extraction method.

目的：研究独活的化学成分并建立提取方法。

youdao

Teas are also useful for herbs that don \ 't require high concentrations of active principles in order to be effective.

这些茶叶也经常对那些不需要很高浓度才发挥作用的草药很有利用价值。

youdao

METHODS: Review interaction styles of DNA with DNA targeting molecules and bioassay guided isolation of active principles from natural medicinal plants.

方法：综述DNA与其靶向分子的作用方式以及DNA为作用靶的生物活性筛选系统跟踪分离天然植物药活性成分的情况。

youdao

But Mr Bush argued that active government was quite compatible with conservative principles, provided that it was active government guided by sensible values and disciplined by internal and external competition.

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"We also have to have regard in excercising constitutional principles to the socio economic realities, and treat the electorate with the respect they deserve as active citizens, " he said.

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