查询词典 carbamate

In the second step, methyl carbamate reacts with methanol to form dimethyl carbonate.

本文对尿素和甲醇合成碳酸二甲酯的反应体系进行了热力学分析。

This paper reviews the synthesis and mechanism,analysis,the physicochemical properties of starch phosphate carbamate.

评述了磷酸-氨基甲酸淀粉酯的合成及反应机理、分析方法、物化性能等。

Depending on the mechanism of action of drugs, type derivation of benzimidazol carbamate drugs and new drug designing were discussed.

依据药物作用机理，进行了苯并咪唑氨基甲酸酯类药物的类型衍化和新药设计。

Study on fluorescence analysis for carbamate pesticides .

蔬菜中西维因农药残留监测用荧光光谱仪的研究。

In order to improve the serviceability of modified starch in sizing wool warp yarns, a series of starch carbamate with different degree of substitution were prepared.

为提高变性淀粉浆料在毛纱上浆中的应用性能，制备了一系列具有不同取代度的氨基甲酸酯淀粉。

By contrast, organophosphate, carbamate and pyrethroid pesticide residues can be removed easily because of their instability.

有机磷类、氨基甲酸酯类及拟除虫菊酯类农药稳定性相对较差，不同操作对其有很好的去除作用。

The starch phosphate carbamate can be employed in some aspect instead of polyacrylate products owing to its good physicochemical behavior.

该产品优越的物理化学性能决定了其在某些方面的应用可以取代聚丙烯酸等石油化工产品。

The carbamate solution from the high-pressure scrubber and fresh ammonia are added.

新鲜氨和从高压洗涤塔来的氨基甲酸盐溶液加到。

The jeopardy,mechanism,analysis method and elimination method of ethyl carbamate was summarized to enhance the social recognition of it as a carcinogen.

对氨基甲酸乙酯的危害、形成机制、分析和消除方法进行了综述，应加强对氨基甲酸乙酯这种致癌物质的认识，引起社会的关注。

The optimum conditions were reaction temperature 120°C, reaction time 20h, mole ratio of 5-chloromethyl-2-oxazolidinone and sodium phenolate 1:1. 3,5-Dimethylphenol and epichlorohydrin in sodium hydroxide were condensated to give l,2-epoxy-3-phenoxy propane, then the reation of l,2-epoxy-3-phenoxypropane and the carbamate afforded oxazolidinone in the yields of 69.0%~76.0%. The side reaction had been avoided effectively by the uses of the excessive epichlorohydrin and mixed catalysts.

用3，5-二甲基苯酚和环氧氯丙烷在氢氧化钠存在下缩合生成苯氧基环氧丙烷，然后和氨基甲酸酯反应生成噁唑烷酮，采用过量环氧氯丙烷和使用混合催化剂，有效的避免了副反应的发生，提高了噁唑烷酮的产率，产率69.0%～76.0%。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失