We have already achieved definite results in this area, yet it is not enough - particularly in regard to research into development work of amphibian skin active bio-molecules.
我国对两栖类生物资源的开发利用已取得一定的成果 ，但还有很多不足 ，尤其是关于两栖类皮肤活性生物分子的研究开发工作 ，基本上还是一片空白。
This article introduces three kinds of preparative chromatography used in purifying bio molecules and active ingredient pharmaceutical compounds for drug discovery and manufacture.
本文介绍三类制备型层析系统，分别用在新药开发和制造领域中纯化生物性分子和药物有效成分。
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