前驱的例句（前驱在句子中的用法）

• Clinical process divides typical armour hepatitis a phase: is preclinical, prodrome period, is icteric period, convalescence. 典型的甲型肝炎临床过程分四个阶段: 潜伏期, 前驱症状期, 黄疸期, 恢复期.
• The onset of this disease may resemble the prodromal period of icteric hepatitis. 它的发病与黄疸型肝炎的前驱期相似.
• The precursor and powder were characterized by XRD 、 DTA 、 ICP 、 TEM 、 BET. 采用XRD、DTA、ICP、TEM、BET等 手段表征了前驱体和产物的特征.
• The citrate sol - gel synthesis method has been used to prepare zinc ferrite. 采用硝酸铁、硝酸锌、柠檬酸制备前驱体,在不同加热温度与速率下制备锌铁氧体.
• New , sterically demanding 1, 3 - dialkylimidazolinium salts used as N - heterocyclic carbene precursors were synthesized and characterized. 合成并表征了一种新型的有空间需求的N - 杂环卡宾前驱体1, 3- 二烷基咪唑啉盐.