Yes According to the information of official website, education bureau of shanghai, in 2023, the doctoral graduates of Tongji University majoring in environment will formally defend themselves from September to 10, and non-graduates should graduate on time in June and complete their defense before June 20. Defense is an educational term, which means that teachers of several related majors ask some questions according to students' design entities and papers, and at the same time listen to students' personal explanations to understand the authenticity and familiarity of students' graduation design.