Mingyang Wang and Zeyuan Wei successfully completed the Oral Defence Examination for their PhD degree. Congratulations! 恭喜魏泽源同学和王名扬顺利完成博士答辩,获得清华大学博士学位!祝魏泽源博士和王明扬博士在今后的科研生活中拼搏上进,硕果累累!