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The experimental results show that when the ratio of seven water ferrous sulfate amount: Calcium carbonate powder amount: Ferri waste residue amount =1.6∶1∶1, desulphurization effect of the obtained product is the best. Each gram of this kind of desulfurizer can completely absorb the sulfur element, which is included by 0.064 9 g five water sodium sulfide.

实验结果表明:当七水硫酸亚铁∶碳酸钙粉末∶含铁废渣=1.6∶1∶1时,制备的脱硫剂脱硫效果最好;每克脱硫剂可全部吸收0.0649g五水硫化钠中的硫元素。

The catalytic action of mercury on the colour reaction between potassium ferrocyanide and 4, 7-diphenyl-1, 10-phenanthrolihe has been studied, The addition of thiourea will further increase the sensitivity of the reaction.

本文研究了汞催化亚铁氰化钾与4,7-二苯基-1,10-菲啰啉显色反应体系,硫脲的加入显著提高了体系的灵敏度,摩尔吸光系数ε=4。

The questing for long service electroless Nickel technology leads to the preferable formula and operation conditions as follows: Nickel Sulphate 25g/L, Sodium Hypophosphate 30g/L, Lactic Acid 20~ 25ml/L, Citric Acid 5g/L, Sodium Acetate 15g/L, Thiourea l~3mg/L, Stabilizer E Img/L.

研究得出的最佳长寿命镀镍工艺为;硫酸镍25g/L,次亚磷酸钠30g/L,乳酸20ml/L,柠檬酸5g/L,乙酸钠15g/L,硫脲1~3mg/L,稳定剂E1mg/L镀液pH值5.0~5.1,施镀温度90±2℃,装载量1dm~2/L;每60min测量镀液中消耗的有效成分和补加浓缩液。

Geochemical analyses include 'total'(concentrated HNO3 -HCl digestion) and chemical forms (three step sequential digestion, reducible, oxidizable and residual forms) of heavy metals Cu, Zn, Pb, Cr,Fe and Mn, iron oxides dithionite-citrate-bicarbonate (DCB and ammonium in the dark extraction as the estimation of total and amorphous iron oxides, respectively, total sulfur and organic matter.

化学分析包括重金属(Cu、Zn、Pb、Cr和Fe、Mn)"总量"(浓HNO3、HCl提取,非严格的总量)、形态(三步提取法,可还原态、可氧化态和残渣态)、氧化铁(连二亚硫酸钠-柠檬酸钠-重碳酸钠提取和草酸铵提取分别估计总氧化铁和无定形氧化铁)、总硫和有机质,并比较了DCB提取前后样品磁性特征的变化。

Experiment by using thiophosphorylation and fluorescent labeling proved subunit A of vacuolar H〓-ATPase was one of the phosphorylated proteins located in tonoplast.

以硫代磷酸化为模型并引入荧光标记,证明V型H〓-ATPase的A亚基是液泡膜上可以被磷酸化的蛋白质之一。

It is manufactured through kneading, cold pressing and post-treatment; and the materials for the synthetic brake shoe include butadiene-acrylonitrile rubber, phenolic resin, graphite, iron powder, barium sulfate, potash feldspar powder, composite fiber, sulfur, hexamethine tertramine, polymethylene aniline, 2-mercaptan benzothiazole, zinc oxide and toluene.

同时本发明的提供了采用捏合、冷压、后处理工艺来制造新型高摩擦系数合成闸瓦。组成新型高摩擦系数合成闸瓦的各组分重量百分比如下:丁腈橡胶为6.20%,酚醛树脂为10.00%,石墨为15.00%,铁粉为11.03%,硫酸钡为30.00%,钾长石粉为5.00%,复合纤维为20.20%,硫磺为1.00%,六次甲基四胺为1.00%,聚亚甲基聚苯胺0.12%,2-硫醇基苯并噻唑0.15%,氧化锌0.30%,甲苯8.0%。

Title compounds were synthesized by condensation of 3 benzylidene isochroman 4 one with 5 substituted 4 amino 3 mercap to 4 1,2,4 triazoles.

通过异色满酮-4的3-位苯亚甲基取代衍生物与4-氨基-3-巯基-1,2,4-三唑的缩合反应得异色满并[3,4-f]硫氮杂奥。

A method to measure the content of nickel in the nickel iso - caprylate by complexometric titration using ethylenediamine tetraacetic acid was set up.

以乙二胺四乙酸或柠檬酸作配位剂,在无氰的硫代硫酸盐–亚硫酸盐体系中研究了金在镀镍铜基底上的电沉积。

Sulfur, salt, and other minerals color the crater of Dallol volcano, part of the Danakil Depression in Ethiopia.

硫,盐,和其他矿物颜色火山口的火山dallol ,部分的danakil盆地在埃塞俄比亚。

In the third part of this paper, a facile method is presented for synthesis of malonaldehyde dianil from propargyl alcohol by oxidizing using chromium trioxide and addition reaction with aniline.

对肼基苯磺酸是由对氨基苯磺酸经亚硝酸钠重氮化得到的重氮盐用亚硫酸氢钠还原、水解、硫酸酸化制得,本文经多次实验确定了反应原料、用量及反应条件,得到的产品纯度好,产率高。

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推荐网络例句

I am accused of being overreligious," she said in her quiet, frank manner,"but that does not prevent me thinking the children very cruel who obstinately commit such suicide.""

客人们在卡罗利娜·埃凯家里,举止就文雅一些,因为卡罗利娜的母亲治家很严厉。

Designed by French fashion house Herm è s, this elegant uniform was manufactured in our home, Hong Kong, and was the first without a hat.

由著名品牌 Herm è s 设计,这件高贵的制服是香港本土制造,是我们第一套不配帽子的制服。

Do not 'inflate' your achievements and/or qualifications or skills .

不要 '夸大' 你的业绩或成果,条件或者技能。