常見(jiàn)例句In order to prepare cellulose acetate-propionate,the acid activation of cellulose was investigated in this paper.以郃成醋酸丙酸纖維素中的酸活化爲(wèi)例對(duì)纖維素的酸活化進(jìn)行了研究。 返回 cellulose xanthate