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In the first stage of evaporating concentration, the borate was existed mainly in the form of tetraborate B4O72- said as " synthesize statistics".

硫酸湖在蒸发浓缩过程初期卤水中的硼酸主要是以四硼酸B4O72-的&综合统计&形式存在的

The result of hydrochloric acid-pH titration for the boron-containing concentrated brine demonstrated that the form of borate in the brine is existed as "comprehensive tetraborate".

酸-pH滴定浓缩卤中硼酸的结果表明,卤中的硼是以&四硼酸&的综合统计形式存在。

The results of this study are summarized below.1 A variety of additives such as proteins,glyoxal / glycerol,alcohols,metal salts,as well as ethylene monomer were used in this study and all of them could improve the leaching resistance of the three kinds of borate(boric acid,borax,disodium octaborate tetrahydrate) in different extents through variety forms.

本研究的结果归纳如下:(1)本研究中所使用的多种助剂如蛋白质、乙二醛/丙三醇、醇类化合物、金属以及乙烯单体等都能通过各种形式,不同程度的提高三种硼酸(硼酸、硼砂、四水合八硼酸二钠)的抗流失性,但效果均不是特别明显。

This dissertation successfully fabricated cross-linked polysiloxanes under base catalysts such as potassium hydroxide siloxanolate or tetramethylammonium hydroxide (Me_4NOH) siloxanolate by anionic ring-opening copolymerization of cyclosiloxanes and Polyhedral Oligomeric Silsesquioxanes as multifunctional monomers.

本论文首次通过阴离子开环共聚,成功地将POSS大分子作为多官能团单体,与环硅氧烷在KOH硅醇或Me_4NOH硅醇等碱性催化剂的作用下,直接合成交联聚硅氧烷:通过调节POSS大分子和环硅氧烷单体的种类以及化学计量比,可合成出一系列不同种类和不同交联密度的交联聚硅氧烷;并对其阴离子开环共聚机理以及极性调节剂DMAc对凝胶时间的影响进行了详细讨论;同时借以凝胶含量和溶胀比、GPC、FT-IR、固体~(13)C和~(29)Si NMR、WAXD、DSC以及TG等手段对所得聚合物的微观结构以及热性能进行了详细考察。

These results above indicated that ordered mesoporous titanosilicate with different Si/Ti molar ratio could be obtained using trimeric surfactant C_(14-2-14-2-14) as templating agent and the Si/Ti ratio could be as low as 5 without the losing of mesostructure ordering.

上述结果说明以自组装能力强的三聚表面活性剂C_(14-2-14-2-14)为模板剂可以制得不同钛含量的介孔硅钛酸材料,尤其是可以得到Si/Ti比低至5的高钛含量介孔硅钛酸材料,这对于提高此类材料的氧化催化性能有重要意义。

The founded models were applied to the calculation of the molten salt actinide recycler and transmuter system, in which the neutronics, thermal hydraulics and safety characteristics were obtained, and the influences of the inlet temperature, inlet velocity and the resistant time of the fuel salt in the external loop were analyzed.

将建立的数学模型应用于锕系元素再循环嬗变熔堆的计算,对其堆芯物理特性、热工水力特性和安全特性进行了系统分析,考察了入口温度、速度及燃料在堆芯外运行时间的影响。

Pentanediol reacted with phosphorus tribromide to make it mono-bromination, under the catalytic action of PPTs it reacted with 2,3-dihydropyran to protect another hydroxy group, then to react with triphosphine, produced quarterphossal.

再以1,5-戊二醇为原料,三溴化磷使之单溴代,得到5-溴-1-戊醇,在对甲苯磺酸吡啶的催化下与2,3-二氢吡喃反应保护其另一端的羟基,与三苯基膦反应生成季磷

Two types of P Br N contained flame retardant,O (2,4,6 1 trioxo 1 oxyphosphabiscyclooctane 4 methylene) O (2,3 dibromopropyl)phosphoric melamine salt and O (2,4,6 tribromophenyl)phosphoric melamine salt,were synthesized from phosphorus oxychloride,pentaerythritol,2,3 dibromopropanol,2,4,6 tribromophenol and melamine,etc.

以三氯氧磷、季戊四醇、2 ,3 二溴丙醇、2 ,4,6 三溴苯酚及三聚氰胺等为原料合成了两种含磷溴氮阻燃剂,即O (2 ,4,6 三氧杂 1 氧基磷杂双环 [2 。2 。2 ]辛烷 4 亚甲基) O 2 ,3磷酸三聚氰胺和O (2 ,4,6 三溴苯基)磷酸三聚氰胺

Using trimeric surfactant C_(14-2-14-2-14) as templating agent, the low cost and facile inorganic species sodium aluminate and sodium silicate as inorganic precursors, highly ordered 2D hexagonal aluminosilicate MCM-41 with high Al content were successfully synthesized.

利用廉价易得的硅酸钠和偏铝酸钠作为无机前驱体,以低聚季铵表面活性剂C_(14-2-14-2-14)为模板剂合成了高铝含量,高有序性的二维六方结构介孔硅铝酸材料,并对材料的结构、表面性质、形貌以及酸性进行了研究。

Methods 2-(piperazin-1-yl)-1-(pyrrolidin-1-yl)ethanone (2) was synthesized from pyrrolidine via amidation and substitution, followed by treating with chloroacetyl chloride and triphenylphosphine in a "one pot" manner to give the corresponding phosphonium chloride 3 in a stable and pure form after crystallization from isopropanol.

以四氢吡咯为原料,先与氯乙酰氯成酰胺,再与哌嗪发生取代反应制得中间体[(1-四氢吡咯基)甲基]哌嗪(2);化合物2与氯乙酰氯和三苯基膦反应,经异丙醇重结晶得到稳定的有机鏻(3);化合物3与3,4,5-三甲氧基苯甲醛发生Wittig反应,再与马来酸成得目标化合物马来酸桂哌齐特(1)。

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推荐网络例句

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面,更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值,分为几个相等的区间作为横轴,并将各区间内所测定值依所出现的次数累积而成的面积,用柱子排起来的图形,也叫做柱状图。

You rap, you know we are not so good at rapping, huh?

你唱吧,你也知道我们并不那么擅长说唱,对吧?