常見例句雙語例句METHODS Hot water extracting and ethanol precipitating method was employed to isolate total polysaccharide (named AP 0) from fresh roots of Angelica sinensis.方法采用水煮—乙醇沉淀法從新鮮當歸中提取當歸總多糖AP- 0 ； 返回 ethanol precipitating