China is going all out to outpace the United States in the race to develop advanced humanoid robots. Its latest strategy: sending its bots to boot camp.Cities across the country are opening huge humanoid robotics training bases, which put robots through their paces in a variety of different scenarios and harvest training data to help manufacturers accelerate their product development.The biggest of these facilities, located in Beijing’s Shijingshan district, covers an area of more than 10,000...