LIVE
More
Home
China
World
Politics
Business
Tech & Sci
Culture & Sports
Opinions
Picture
Video
Transcript
Tech & Sci
2017-08-21 15:11 GMT+8
Walmart files patent for floating warehouse that uses drone to deliveries goods
By Xie Zhenqi
Copyright ©
SHARE
RELATED STORIES
OUR APPS
CGTN
CGTN HD
CGTN LIVE