Not much. Northwestern Polytechnical University is located in Xi Youyi West Road, Shaanxi Province. According to the investigation on the use of mosquito nets in the boys' dormitory of Northwestern Polytechnical University, there are not many mosquito nets in the boys' dormitory, and all of them use hanging curtains, which can better protect their privacy, prevent mosquito bites and prevent sunlight. This university is the only multidisciplinary, research-oriented and open university in China, where the training of aviation, aerospace and navigation talents and scientific research develop simultaneously.