12月21日量化数据(仅供参考):
乡村振兴
人工智能 A
节能环保
充电桩
储能
物联网 A
新材料 A
一带一路 A
机器人 A
Quantitative data on December 21 (for reference only):
Rural revitalization
Artificial intelligence A
Energy saving and environmental protection
Charging piles
Energy storage
Internet of Things A
New materials A
One Belt, One Road A
Robots A