While classical chemistry was practised in the beginning, the focus has later been mainly put on radiochemistry, nuclear physics and mass spectrometry.

在建立初期是古典化学，后来研究重点分别主要放在放射化学，核物理和物质光谱分析。

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With these alternative methods, Li and his colleagues have discovered an entirely new way of synthesizing peptides using simple reagents, a process that would be impossible in classical chemistry.

李和他的同事发现一种全新的使用简单试剂合成肽的方法——用经典化学不可能实现的方法。

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Peptides are enormously important to biological and proteomic research, but classical chemistry provides no easy way to synthesize them, making the potential impact of this discovery very significant.

肽对于生物和蛋白质研究是极其重要的，但经典化学无法提供简单的方法合成肽，这使该发现的影响潜力非常显著。

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