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This paper reviews the structure, source, biological function of cecropins and their application in plants and animals, and discuses their existing problems and perspectives.

本文综述了天蚕素抗菌肽的结构、来源、生物作用，重点介绍了天蚕素抗菌肽的应用，并对其存在的问题和未来发展前景进行分析。

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Each mapping expresses the rule of creation of target structure from the source structure.

每一个映射表达了数据源结构的目标结构的建立规则。

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"It's correlating the increasing intensity in different bands that provides really important clues about the structure of the source, " Prof Madejski - a co-investigator on the NuStar X-ray telescope, told BBC News.

BBC: Blazar Markarian 421's flare-up is cosmic coincidence

This decentralised structure may be a source of weakness as banks merge and become more pan-European.

ECONOMIST: Banking on a crisis?

As ETFs have exploded in popularity, they also have become the source of concern that the structure distorts prices or would break under the strain of investors bailing out en masse.

WSJ: Gold ETFs Shine in Midst of Tumult