The results carry out the breakthrough of key technology of road traffic safety risk, at the same time;

这为道路交通安全风险的预警实现了关键技术的突破；

youdao

The results carry out the breakthrough of key technology of road traffic safety risk, at the same time;

这为道路交通安全风险的预警实现了关键技术的突破；

youdao