Principles and design of mechanical face seals Principles and design of microwave absorbing materials Principle and design of heat exchangers Principles and design methods of pavement 并列题名:Principles and design of microwave absorbing materials Reliability design of mechanical system Principles and design of massive beamforming technology Principles and design methods of deep space TT$C system Computer-aided design of gearing and seals Reliability and safety design of mechanical and electrical systems