cellulose II纤维素IIcellulosen.纤维素cellulose acetobutyrateate纤维素乙酰丁酸酯cellulose propionate fibre纤维素丙酸酯纤维cellulose fatty acid ester纤维素脂肪酸酯cellulose trithiocarbonate三硫代碳酸纤维素cellulose acetate butyrate乙酸丁酸纤维素,乙(酰)丁(酰)纤维素cellulose triacetate fiber三醋酯纤维cellulose acetate sulphate纤维素醋酸硫酸酯cellulose nitrate plastics硝酸纤维素塑料cellulose acetate plastics醋酸纤维素塑料cellulose inorganic esters纤维素无机酸酯