查询词典 urea

A high cutting efficiency required the acid environment and urea as a solutizer had an advantage over 70% formic acid in facilitating cleavage.

高效率的切割需要在酸性条件下进行；以尿素作为促溶剂比70%的甲酸更有利于小肽的切割。

To study the modulating effect of polysaccharide and protein secreted by Sphaerotilus upon the mineralization behaviors of Fe3 gel, the authors investigated the nucleation and crystallization processes of Fe3 gel inside and around the Sphaerotilus cells which were growing in the mineralization systems with urea and Stoke substrate.

本文通过观察在尿素和Stoke培养基中生长的球衣菌细胞壁内及其周围氢氧化铁凝胶的矿化过程，研究球衣菌分泌的多糖和蛋白质对氢氧化铁凝胶矿化结晶行为的调控作用。

The product was made from ritric acid and isoamyl alcohol with sulfuric acid as catalyst, and urea as stabilizator in the reaction.

以异戊醇和50％HNO3为原料，50％H2SO4为催化剂，尿素为反应稳定剂，合成了柴油十六烷值改进剂——硝酸异戊酯。

The "hairing" phenomenon on highN compound fertilizer is for urea being changed into a kind of acicular subtransparent substance on the surface of compound fertilizer granules under the interation of temperature gradient and moisture.

剖析了高氮复合肥&长毛&结块的原因，主要是由溶解度较大的尿素在温度梯度和水分的作用下，在复合肥颗粒表面逐渐生成的一种针状放射型半透明体所引起。

Ammonium tristyrylphenol polyoxyethylene ether sulfate was synthesized from tristyrylphenol polyoxyethy-lene ether and sulfamic acid using urea as catalyst.

以三苯乙烯基苯酚聚氧乙烯醚和氨基磺酸为原料，合成了三苯乙烯基苯酚聚氧乙烯醚硫酸酯铵盐。

Through analyzing of the theory and the results, we concluded that method 2, namely mixed reaction of defatted soy flour, Urea-SDS solution and Ellman's reagent, can determined exactly sulphydryl content of defatted soy flour.

通过理论和数据分析得到，方法二即脱脂豆粕、尿素－SDS溶液和Ellman's试剂相混合反应可用于测定脱脂豆粕中的巯基含量。

First, ab initio calculations have been performed at the HF/6-31G level of theory for 27 indazolyl urea compounds (using 1H-indazole tautomeric form). On the basis of optimized structures, five kinds of topological indices, electrostatic potentials as well as their statistically-drived quantities have been obtained.

首先，采用1H-吲唑异构形式，对27个TRPV1通道拮抗剂分子进行了HF/6-31G水平上的结构优化，在优化结构上进行了5类拓扑指数和分子静电势及其导出参数的计算。

The thermodynamical stuty indicates that the synthesis of propylene carbonate from urea and propylene glycol is possible.

尿素和丙二醇合成碳酸丙烯酯在热力学上是可进行的。

The reaction system of synthesizing propylene carbonate from urea and 1,2-propylene glycol has been analyzed thermodynamically.

对尿素与1，2-丙二醇合成碳酸丙烯酯反应体系进行了热力学分析。

Thiadiazole ; acyl urea; acyl thiourea; synthesis; plant growth regulating activity; auxin activity; cytokinin activity

1； 3； 4-噻二唑；酰基脲；酰基硫脲；合成；植物生长调节活性；生长素活性；细胞分裂素活性

I can not make it blossom and suits me

我不能让树为我开花

When temperatures are above approximately 80 °C discolouration of the raceways or rolling elements is a frequent feature.

当温度高于 80 °C 左右时，滚道或滚动元件褪色是很常见的特征。