Maritime safety administration, training institutions, etc. According to Dalian local treasure, Mifune trainee record book is an important tool for seafarers to record their internship experience, learning and growth during their internship, which can be purchased from maritime safety administration, training institutions and shipping companies. The three-pipe ship intern record book is provided by the shipping company or training institution, which is used to record the interns' learning content, internship experience, training plan, assessment results and other information.