This is very difficult. Machinery of Northeast Agricultural University is a very difficult major with strict requirements and high scores. It is very difficult to take the mechanical postgraduate entrance examination in Northeast Agricultural University. Northeast Agricultural University, referred to as "Northeast Agricultural University", is located in Harbin, Heilongjiang Province. It is a national "double first-class" construction university and the first batch of "2 1 1 project" construction universities, and it is a university jointly established by the People's Government of Heilongjiang Province and the Ministry of Agriculture and Rural Affairs.