论文部分内容阅读
1986年第1期(总第43期)论文、著作 旋笛“··“·············“····“·········“···········”·”····“····”····“····“····“···……张扩基李戈李炳光(。 扬声器振膜新材料—接枝改性纸浆·······
1986 the first period (total 43) thesis, the book of the “siren” ······························································ ························ · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · Zhang Jianji Li Ge Li Bingguang New material for diaphragm - graft modified pulp