First, Northeastern University is a 985 national key university directly under the Ministry of Education and a first-class university of science and engineering in China, which is very good.
Secondly, the mechanical engineering discipline of Northeastern University has two national key disciplines (mechanical design and theory), which shows that the mechanical engineering of Northeastern University is at the leading level in China and is very good. Judging whether a certain subject in a school is good or not depends on whether the school has key subjects and what level it is. If a school has a national key first-class discipline, then it can be said that this discipline of this school is the top level in China. If a school does not have a national key first-class discipline in this discipline, but has a national key two disciplines, then it can be said that this school is leading the country in this discipline, and there is still a little gap with the top level.