Offshore specialty is semi-military management, while onshore specialty is comprehensive management. Maritime majors usually queue up for classes and wear uniform clothes, so senior students will be more free. Not for professionals on land, but for flag-raising and activities. Morning exercises are required for navigation majors, but not for land majors. Eating is casual. The clothes are imitation navy blue clothes, a set of all-white short sleeves, a set of sailor's clothes, a set of white clothes and blue clothes, which are worn in different seasons.