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Firstly, we selected the catalyst for piperidine oxidation reaction, and obtained the compound catalyst of silicon tungsten molybdic acid.

首先就哌啶醇催化氧化合成TEMPO反应使用的催化剂进行筛选,得出催化效果显著的硅钨酸与乙二胺四乙酸复合催化剂。

Based on the optical activity of the complex formed by mannitol and ammonium molybdate,the mannitolum level in the gastrointestinal dialysis salt was determined with polarimetry.

本文根据甘露醇与酸铵的络合物具有旋光性这一特点,用旋光法测定胃肠透析盐中甘露醇的含量。

Molybdenum exists in soil and plants at very low levels. Its quantitative detection is in the range from ppm to ppb. Satisfactory results can be obtained by the use of polarography.

土壤和植株中的是含量很低的化学元素,定量分析检出范围是pp~m-pp~b数量级,采用极谱法分析可获得满意的结果。

A rare heavy polyvalent metallic element that resembles manganese chemically and is used in some alloys; is obtained as a by-product in refining molybdenum.

一种稀有的多价金属元素,重,化学性质类似锰,用于一些合金中,精炼的副产品。

Is better than that of using Na〓S merely and the profit per year is over 6, 000, 000 yuan. External potential-control flotation column and The Cu-Mo bulk concentrates flotation separation. With appropriate combination of the principle of sulphide flotation pulp electrochemistry and the technology of flotation column show the advantage over flotation equipment, External potential-control flotation column was studied successfully, laboratory potential-control flotation column was designed and its structural principle, the relationship of electrode structure and the activity of separation, the electrochemistry principle of potential-control flotation column also was investigated.

用具有较强电化学还原能力的无机物(如硫化钠、连二亚硫酸盐等)与能和硫化铜矿物表面发生选择性吸附的小分子有机化合物组合使用、成功地实现了混合精矿体系中黄铜矿的抑制、解决了德兴铜矿铜混合精矿浮选分离时、硫化钠用量大、生产成本高,生产指标不稳定的技术难题,研究结果表明,用组合抑制剂3.8kg/t可取代生产中硫化钠45kg/t的高用量,并获得优于单用硫化钠的好指标,年直接经济效益600万元以上。

After subjected to the streaming treatment, the dispersion of the loaded Mo species pronouncedly increased, and some Mo species with small particle size migrated into the zeolite channels and reacted with the Brnsted acid sites to form (Mo2O5)(superscript 2+) dimers.

经高温蒸气处理后,催化剂上Mo物种的分散度显著提高,有较多的Mo物种迁移至分子筛的孔道内,并与B酸发生强相互作用生成氧二聚体,有效地增强了催化剂的抗积炭能力。

The highly sensitive chromogenic reaction of a ternary complex of 4-(2-benzothiazolylazo) pyrocatechol with Mo-, W-diphenyl guanidine and the application of partial least squares method in simultaneous spectrophotometric determination of trace Mo and W have been studied.

本文研究了新显色剂4-(2-苯并噻唑偶氮)邻苯二酚-Mo、W-二苯胍三元配合物的高灵敏显色反应以及偏最小二乘法在同时分光光度测定痕量和钨中的应用。

Identified that the pyrogallol red-molybdate assay was the most suitable for beer and was thus used here.

21确定该邻苯三酚红法是最适合啤酒,因此使用这里。

Objective: To compare the difference of the results of urinary total protein with different proportion of albumin using Pyrogallol Red-molybdate method and benzethonium chloride method.

目的:比较尿白蛋白百分含量不同时用邻苯三酚红法和苄乙氯铵法测定尿总蛋白结果的差异。

Monocrystalline silicon electrical heating element of this company is called the ideal product in high temperature and heating field in 21st century, which can substitute for the pollution pyrotoxin of traditional coal, heavy oil, natural gas.

公司新项目的产品二硅化电加热元件是被称为21世纪高温电加热领域的理想产品,可取代传统的煤,重油,天然气为热源的污染型发热源,是高温领域的环保替代品。

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Lugalbanda was a god and shepherd king of Uruk where he was worshipped for over a thousand years.

Lugalbanda 是神和被崇拜了一千年多 Uruk古埃及喜克索王朝国王。

I am coming just now,' and went on perfuming himself with Hunut, then he came and sat.

我来只是现在,'歼灭战perfuming自己与胡努特,那麼,他来到和SAT 。

The shamrock is the symbol of Ireland and of St.

三叶草是爱尔兰和圣特里克节的标志同时它的寓意是带来幸运。3片心形叶子围绕着一根断茎,深绿色。