cellulose I纤维素Icellulosen.纤维素cellulose propionate丙酸纤维素cellulose tribenzoyl三（苯甲酰基）纤维素cellulose-asbestosadj.石棉纤维的cellulose triacetate三乙酸纤维素Cellulose activities纤维素酶cellulose ester base纤维素酯片基cellulose-membrane纤维素薄膜cellulose derivative纤维素衍生物cellulose synthetase纤维素合酶cellulose crystallite纤维素微晶