他说：“这颗恒星自转速度相对来说比较快。”

"The star is rotating relatively quickly," he said.

youdao

恒星的自转，是恒星结构和演化理论的难点。

Stellar rotation is a difficult problem of the theory of stellar structure and evolution.

youdao

恒星的自转，是恒星结构和演化理论的难点。

Stellar rotation is a difficult problem of the theory of stellar structure and evolution.

youdao