Compared with other disciplines, it is more difficult to apply for a Ph.D. in engineering at Jida University, because engineering covers a wide range and there are many undergraduates. In recent years, the postgraduate entrance examination army has become more and more huge, so the master's admission rate is still three to one, far lower than the undergraduate admission rate, and the doctor of engineering is one tenth of the master's. You can imagine how difficult the exam is.