The living expenses of Nanjing University of Aeronautics and Astronautics are difficult to give a specific figure because of different personal consumption habits and living standards. Here are some possible costs:

1. Meals: Students can choose the canteen on campus or the businesses around campus. It is estimated that the monthly food expenses will be about 1500 yuan.

2. Transportation: There are many modes of transportation in Nanjing, such as subway, bus and taxi. There are bus stops on campus, and students can buy campus bus cards to ride. It is estimated that the monthly transportation fee is about 100 yuan.

3. Learning and entertainment: This part of the cost varies from person to person, including books, examination and practice materials, sports and fitness. About 300 yuan every month on average.

Generally speaking, according to the basic needs of life, the living expenses of 2000-3000 yuan a month should meet the living needs of students in Nanjing University of Aeronautics and Astronautics. Of course, the actual cost depends on many factors such as personal economic strength and consumption habits.