日韩精品久久一区二区三区_亚洲色图p_亚洲综合在线最大成人_国产中出在线观看_日韩免费_亚洲综合在线一区

Home / China / Society

Chinese farmer granted patent for submarine

(chinadaily.com.cn) Updated: 2016-04-28 14:34

Chinese farmer granted patent for submarine

Zhang Shengwu demonstrates how to operate his homemade submarine on April 27, 2016. [Photo/IC]

Tags
Most Popular
...