The algorithm separates DCT coefficients into three parts: DC coefficients, even and odd indexed DCT coefficients.

算法将DCT系数分成三部分：DC分量、偶下标分量和奇下标分量。

youdao

Mr. . Bennet was so odd a mixture of quick parts, sarcastic humor, reserve, and caprice, that the experience of three and twenty years had beeninsufficient to make his wife understand his character.

贝内特先生是个古怪人，一方面乖觉诙谐，好挖苦人，另一方面又不苟言笑，变幻莫测，他太太积二十三年之经验，还摸不透他的性格。

youdao

Mr. Bennet was so odd a mixture of quick parts, sarcastic humour, reserve, and caprice, that the experience of three and twenty years had been insufficient to make his wife understand his character.

本纳特先生真是个古怪人，他一方面喜欢插科打浑，爱挖苦人，同时又不拘言笑，变幻莫测， 真使他那位太太积二十三年之经验，还摸不透他的性格。

youdao

Welch, who rose to chief executive in 1981, somehow made these odd parts fit together, even benefit one another.

FORBES: The Jack Factor

In the third movement, for example, the setting is rather odd, with the two top parts playing repeated notes in a slow tempo, whereas the bass line and the chord progression are slow with very little motion.

NPR: Live in Studio 4A: Parnassus Avenue Baroque

Looking ahead, he said wind and snow showers were "likely to continue across north-eastern and central parts of the country, although the odd wintry flurry is possible almost anywhere".

BBC: UK snow: Weather prompts escape to foreign shores