上游充通大学 材料科学与工程学院 School of Materials Science and Engineering.SJTU 1896 1920 1987 2006 Teamwork The geese at the back of the formation honk to encourage those at the front. 1日日日 工程学导论-李军(材料B楼308)1896 1920 1987 2006 工程学导论-李军(材料B楼308) The geese at the back of the formation honk to encourage those at the front. Teamwork