What is a Wei Zi robot?

The meaning of construction and operation transfer. BOT is a project financing mode, namely "build-operate-transfer". BOT is based on the agreement between the government and private institutions, which allows private institutions to build infrastructure and allow them to manage and enjoy the benefits within a certain period of time. After the concession period ends, the private institutions will hand over the facilities to the government departments as agreed, and the facilities will be operated and managed by the departments designated by the government.