TIANJIN, Feb. 16 (Xinhua) — Zhang Yun keeps a carefully curated chart of drone shows on his mobile phone, which reveals that since the start of this year, staggering 100,000 drone flights for air per
Enjoy life, Inspiring work
Enjoy life, Inspiring work
TIANJIN, Feb. 16 (Xinhua) — Zhang Yun keeps a carefully curated chart of drone shows on his mobile phone, which reveals that since the start of this year, staggering 100,000 drone flights for air per