In this paper, a new fast algorithm to calculate discrete cosine transform (DCT) with arbitrary length by means of the butterfly structure is presented.

本文提出离散余弦变换(DCT)的一种新的快速算法，其特点是变换长度任意，而且采用蝶形结构。

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Dr Peter Vukusic of Exeter University is an expert in the 'structural colour' that appears in butterfly wings and will help GE to model how the structure reacts with different gases.

埃克塞特大学Peter Vukusic博士是结构色方面的专家，蝴蝶翅膀的结构色有助于通用电气模拟这一结构对不同气体的反应。

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Butterfly simple structure, small size, light weight, only by a small number of parts.

蝶阀结构简单、体积小、重量轻，只由少数几个零件组成。

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