According to the specific highway construction area, the use of new guardrail for actual installation.

根据具体公路施工面积，选用新的护栏进行实际安装。

youdao

According to the specific highway construction area, the use of new guardrail for actual installation.

根据具体公路施工面积，选用新的护栏进行实际安装。

youdao