• 参考文献

    American Cyanamid Company Patent: US3932479 A1, 1976 ; Title/Abstract Full Text Show Details American Cyanamid Company Patent: US3966773 A1, 1976 ; Title/Abstract Full Text Show Details American Cyanamid Company Patent: US4110368 A1, 1978 ; Title/Abstract Full Text Show Details American Cyanamid Company Patent: US4123456 A1, 1978 ;

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