共 236 条
[3]
[Anonymous], 1965, US Patent, Patent No. 3229766
[4]
[Anonymous], 2013, US Patent, Patent No. 8603518
[5]
[Anonymous], 2001, US Patent, Patent No. 6316038
[6]
[Anonymous], 2009, US Patent, Patent No. 7485743
[9]
Athlan A, 1997, J ENVIRON POLYM DEGR, V5, P243