Objective to investigate the risk factors of road injury.

目的探讨道路伤害危险因素。

youdao

[Objective] to study the toxicity of the road dust.

目的探讨公路粉尘的细胞毒性作用。

youdao

Objective: create good road green system and provide good economical vegetation resources for road green.

目的：创造良好的公路绿化系统，为公路绿化提供较好的经济的植被资源。

youdao

Objective: create good road green system and provide good economical vegetation resources for road green.

目的：创造良好的公路绿化系统，为公路绿化提供较好的经济的植被资源。

youdao