China Focus: China's low-altitude economy soars at high speed

NANJING, Dec. 18 (Xinhua) -- Imagine standing atop the Great Wall, marveling at the sweeping vistas of rugged mountains, when a drone smoothly descends to deliver freshly brewed coffee.

This is not a scene from a science-fiction movie, but a glimpse into China's burgeoning low-altitude economy.

In Beijing, the first drone-based logistics route is now in service at the Badaling section of the Great Wall. P