Tianjin University, Hebei University of Technology, Yanshan University. By inquiring official website of Tianjin University, we know that the water conservancy major of Tianjin University can be recommended to Tianjin University, Hebei University of Technology and Yanshan University. Baoyan refers to a person recommended by an undergraduate school who is admitted as a graduate student through an evaluation form without going through some preliminary procedures such as written examination. , within the allowable range.