方法: 采取凝胶过滤方法分别提纯上述花粉变应原.METHODS: The pollen allergens were purified by gelatin filtration.目的从樟树花粉中克隆泛变应原基因.Objective To clone new panallergen genes from pollen Cinnamomum camphora.观察125例变态反应性鼻炎变应原鼻内激发试验前后鼻阻力变化.Allergen n...
Amphoteric monomer is prepared with acrylic acid , dimethylamine and chloroethanol by Mannich reaction.以丙烯酸、二甲胺、环氧氯丙烷为原料,通过曼尼希反应制得两性离子单体.Biological activities of amphoteric surfactants to higher or lower organisms were i...
The issue has caused heated political argument.这个问题已经引发了激烈的政治争论。When matter is heated, it expands.物体受热则膨胀.Virtually all liquids, when mixed and heated, will display azeotropic behaviour.实际上所有液体混合并受热时, 都表现出恒沸物的特性.Our disc...
He unleashed a torrent of abuse againstthe unfortunate shop assistant.他对那倒霉的店员骂不绝口.The full force of his rage was unleashed against me.他把所有的怒气都发泄在我身上.Then he unleashed his own, unstoppable, attack...接着他开始了自己不可阻挡的攻击。The t...
The climate has grown more equable and the crop yields have risen.天气变得更加温和，粮食产量也已经提高。He was a fine person to work with and he was very equable and a patient man.他是个非常平和而且有耐心的人，和他一起工作很愉快。He was a man of the most equable t...