By He Huifeng
Subway trains across the southern Chinese megacity of Shenzhen welcomed an unusual new set of passengers on Monday, as the city deployed a fleet of delivery robots to restock convenience stores scattered around its subway system.
Dozens of squat delivery robots have now begun riding subway trains across the network during off-peak hours, exiting at each station where a 7-Eleven is located to make deliveries, according to a report by local news outlet SZNews.
The project is the first of its kind…