研究了在固定化脲酶催化作用下双醛纤维素对尿素氮的吸附平衡和动力学。
The adsorption of urea nitrogen onto dialdehyde cellulose (DAC) under catalysis of immobilized urease in gelatin (IU) was studied in batch system.
我们用二茂铁乙炔、芳香醛和尿素三组分一锅煮反应，想要得到二茂铁基得4H-1，3-嗪。
We experimented by the one-pot reaction of ethynylferrocene, Arylaldehydes and Urea, wanted to the ferrocene-containing 4H-1,3-Oxazines.
脲醛树脂由尿素、甲醛、二醛和一种或多种稳定剂、改性剂，按照弱碱-弱酸-弱碱的路线反应而得。
The urea-formaldehyde resin is formed by the reaction of urea, formaldehyde, aldehyde, one or more stabilizers and modifier according to the route of weak base-weak acid-weak base.
脲醛树脂由尿素、甲醛、二醛和一种或多种稳定剂、改性剂，按照弱碱-弱酸-弱碱的路线反应而得。
The urea-formaldehyde resin is formed by the reaction of urea, formaldehyde, aldehyde, one or more stabilizers and modifier according to the route of weak base-weak acid-weak base.
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