DingYi1122/Shutterstock Humanoid robots aren't particularly common in the United States as of yet, but over in China, they've seen a remarkably fast and widespread rate of adoption, with over 100 manufacturers in business and around 28,000 assorted units currently in operation. Chinese robots have made some impressive strides recently, including the literal example of a robot beating the world's half-marathon record, and companies like Nvidia are partnering with Chinese manufacturers to create "physical AI" robots. There are now so many robots in circulation that China's Ministry of Industry and Information Technology has started a new effort to keep track of them…