urea

This proved that nitrourea was a more suitable reactant than urea to synthesize Keto-RDX.

由表明在生成RDX酮的应过程中，硝基上比更为合适的应形式。

The soy sauce containing urea will become red when heated together with diacetyldioxime and phosphoric acid.

掺有尿素的酱油在与丁二酮肟、磷酸混合后,加热煮沸会呈现红色。

Since various, cause has not given a test to maneb zinc supersession thing second braces sulfurs urea (ETU).

由于各种原因未对代森锰锌的代谢物乙撑硫（ETU）进行检测。

Cross-linking agent glycoluril with a yield of 61.8% had been synthesized by employing urea and glyexal as reactants,and hydrochloric acid as catalysts.

以尿素和乙二醛为原料,在酸催化的条件下合成,产率为61.8%。

High-grade filling and retanning agent CDF was prepared by condensation polymerization reaction of urea,cyanuramide and dicyandimide.The property and application of the product were discussed.

本文主要论述用、双氰胺、三聚氰胺等原料经缩聚应制备填充复鞣剂CDF的方法及其性能与应用。

This paper presents the studies on the reaction form of urea or nitrourea which condenses with nitrolysis fragments of urotropine to form Keto-RDX in nitrating agents.

通过改变加料方式来研究或硝基在硝化剂中与乌洛托品硝解碎片进行缩合应的形式。

A kind of monosubstituted squaric amide ——mono carbamoyl amide of squaric acid 3(MCASAQ) was prepared by the condensation of squaric acid (SQ) with urea or its derivatives in water.

以水为介质,方酸与及其衍生物顺利发生脱水缩合,合成一类方酸单酰胺化合物——氨甲酰类氮氧方酸3。

Methods Compounded one kind of trisaccharide iron urea indol culture medium and the trisaccharide iron agar has carried on the contrast experiment with the national standard method in voluntarily.

方法自行配制一种三糖铁尿素靛基质培养基,并与国家标准方法中三糖铁琼脂进行对比试验。