The axis and multidimensional research structure about transportation safety is established from the view of space-time.

从时空角度确立了运输安全研究的轴向结构与多维结构。

youdao

The axis and multidimensional research structure about transportation safety is established from the view of space-time.

从时空角度确立了运输安全研究的轴向结构与多维结构。

youdao