单支红色发光二极管表示电源已接通。

A single red LED shows that the power is switched on.

《牛津词典》

冠状动脉单支病变13例，其余为多支病变。

Single vessel disease was in 13 patients and the others were multi vessel disease.

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米兰是一支能够在单场比赛中更好控制局面的球队吗？

Milan is a team which in the single match can manage better the situation?

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纱多为粗支单纱。

Yarn is more than a single yarn.

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纱多为粗支单纱。

Yarn is more than a single yarn.

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