System design and application of magnetostrictive biosensor 并列题名：System Design and Application of Magnetostrictiv e Biosensor System theory and technology of magnetostrictive biosensor Design and application of membrane bioreactor 并列题名：Design and application of membrane bioreactor Principle and application of nucleic acid biosensor System design and application of road passenger transport network ticketing Design and application of industrial robot Design and application of steel structures Electrical design and application of transportation buildings