查询词典 sulfourea

The strong descaling agent is characterized by its formula composed of 50-65% of hydrochloric acid, 0.6-0.9% of urotropine, 0.5-0.7% of sulfourea, 0.4-0.6% of aminobenzene and the rest is water.

一种强力除垢剂，其特征在于它的配方为：盐酸50―65％，乌洛托品0.6―0.9％，硫脲0.5―0.7％，苯胺0.4―0.6％，余量为水。

Its preparation method includes the following steps: the urotropine, sulfourea and aminobenzene are placed in the reactor in which the water is held, stirred for 1-2 hr, then the hydrochloric acid is added, and stirred for 1-2 hr so as to can obtain the invented product.

其制作方法是：首先将乌洛托品、硫脲、苯胺依次加入装水的反应釜中进行搅拌1―2小时，然后再加入盐酸，再搅拌1―2小时即可。

The best technology conditions have been decided through experiment of sulfourea dioxide synthesized by sulfourea and hydrogen peroxide.

由硫脲和双氧水合成二氧化硫脲，通过试验确定了最佳工艺条件，使二氧化硫脲的收率均在 85%以上，并对母液回收进行了研究，使其收率均在 90 %以

The results showed that sulfourea and cetylpyridinium bromide respectively had an inhibitive effect on corrosion of 16Mn steel under thin electrolyte film with H_2S.

结果表明，硫脲和溴化十六烷基吡啶分别都表现出一定的缓蚀效果，复配后具有缓蚀协同效应，存在一个最佳缓蚀浓度极值和一个最佳缓蚀浓度比。

The interference of metal ions Fe(superscript 3+、Cu(superscript 2+)and so on in oil can be eliminated by using hydroxyl amino hydrochloric acid and sulfourea as masking agents.

以盐酸羟胺和硫脲作为掩蔽剂可消除Fe(上标 3+)、Cu(上标 2+)等离子的干扰，对大庆原油与锦西减四线馏分油中的钒进行测定，相对标准偏差不大于3.5%，加标回收率为

The Ag adsorbed on TiO2 nanoparticles could be eluted completely by mixed solution of nitric acid(1 mol/L) and sulfourea(2 g/L).

硝酸和硫脲混合溶液可将吸附在TiO2纳米颗粒表面的Ag全部洗脱。

The inhibitive effect of each sulfourea and cetylpyridinium bromide and their synergistic inhibitive effect on 16Mn steel under thin electrolyte film with H2S were investigated by using potentiodynamic polarization technique and EIS.

用极化曲线和交流阻抗技术研究了硫脲和溴化十六烷基吡啶在复配前后对含H_2S 薄层液膜下的16Mn钢的缓蚀行为，得到了一些重要结论，并对其进行解释和讨论。

In my work, mesoporous lamellar zincum sulfide is synthesized by hydrothermal techniques, with CTAB as templates and Zinc acetate and sulfourea as precursors. The best reactive condition is as follows: the ratio of reactive components is CTAB:Zinc acetate:sulfourea:water=1:3:10:1388; the volume of pH is 4.4; the best hydrothermal parameter is 100℃ for 48h.

以十六烷基三甲基溴化铵为模板剂合成层状介孔硫化锌的最佳反应条件为CTAB：Zn2：(NH2)CS：H2O=1：3：10：1388，pH值范围为3.8-5.8， 100℃下水热48h，此时得到的样品呈现一套层状介孔结构，相应的晶面间距为33.0 A，16.7 A，11.1 A。

Thiobarbituric acid was synthesized by sulfourea and diethyl malonate in sodium alcohol and 5-Arylidene thiobarbituric acid was prepared by the Knoevenagel condensation reaction from benzaldehyde and thiobarbituric acid.

采用丙二酸二乙酯和硫脲在乙醇钠存在下合成了硫代巴比妥酸，再分别采用固相反应和水相反应，由硫代巴比妥酸和苯甲醛经Knoevenagel缩合反应，制备了5-亚苄基硫代巴比妥酸。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。