中国和世界交通医学研究的作者合作度偏低，均低于医学类平均4.49的水平。

The collaborating degree of China and world was lower than 4.49, average for medical research.

youdao

中国和世界交通医学研究的作者合作度偏低，均低于医学类平均4.49的水平。

The collaborating degree of China and world was lower than 4.49, average for medical research.

youdao