英语人>网络例句>salts 相关的网络例句
salts相关的网络例句

查询词典 salts

与 salts 相关的网络例句 [注:此内容来源于网络,仅供参考]

The correlation between the parameters of laccase-treated lignin and salts of lignosulphonate and the shearing strength of plywood was analyzed. Result shows that the optimum parameters of laccase-treated lignin and salts of lignosulphonate were different respectively.

研究了不同漆酶处理活化木素及其磺酸盐的工艺条件与胶合板的胶合强度之间的相关性,漆酶分别处理木素及其磺酸盐的各自最佳条件不尽相同。

These salts can beprepared on treatment of phosphinimines with trifluoroaceticanhydride. After addition-elimination, triflromethylated β-enaminoesters and β-iminoesters were synthesized by thereaction of the above salts with organozinc reagents.

通过膦亚胺和三氟乙酸酐反应制备了N-三氟乙酰基氨基膦盐,该膦盐和锌试剂发生加成-消除反应后,合成了含有三氟甲基的β-烯胺酯和β-亚胺酯。

The enhancement of the reaction activity is attributed to the phasetransfer capability of the built-in quaternary ammonium and pyridinium salts of theMn catalyst. The effect of the internal quaternary ammonium and/or pyridiniumsalt on the epoxidation of substituted chromenes is similar to that of the externalpyridinium salts and ammonium halides.

分子内季铵盐和吡啶盐具有相转移能力,对于取代色烯不对称环氧化的作用与外加的吡啶盐和卤化铵的作用相似,使Mn催化剂催化取代色烯环氧化反应的活性明显提高。

Anlistatig is a tetravalent metal salts, ratherish in water, surface coating of the paper, the salts are available moisture from the air and reducing the paper surface, eliminating electrostatic resistance.

抗静电剂是一栽四价金属盐,易溶于火,涂布在纸张暗不天后,盐可从氛围洋汲取火分而降矮纸张暗不天的电阻,从而打消静电。

Simultaneously we prepared benzimidazolines with two methods by the reducton of benzimidazolium salts with NaBH_4 and Grignard addition with benzimidazolium salts. Thus we provided a new biomimic synthetic method for 9 kind of tetrahydro-β-carboline starting from carboxylic aicd and halid. A convenient synthetic method for preparing tetrahydro-β-carboline was provided.

本文以1,3-二甲基苯并咪唑碘盐和2-取代的1,3-二甲基苯并咪唑碘盐为原料,采用了NaBH_4还原和Grignard试剂加成两种方法,制备了9种1,3-二甲基苯并咪唑烷和2-取代的1,3-二甲基苯并咪唑烷作为四氢叶酸辅酶一碳单元转移新模型,在酸性条件下,以色胺作为接受一碳转移的亲核试剂,完成9种四氢-β-咔啉类化合物的新合成方法研究。

The invention provides a process for recovery of lithium and other metals and salts from brines, by using a series of evaporation tanks to control the evaporation of the brines of this metal, with unnecessity of rigid chemical reaction, so as to product a liquid easily and economically extrcted by metals and salts.

本发明提供一种从含盐天然水中回收金属和盐如锂的方法,通过使用一系列蒸发池以控制含这类金属的盐水的蒸发而无须强烈的化学反应以生产一种金属和盐能更容易和经济地提取出来的流体。

Simultaneously we prepared benzimidazolines with two methods by the of reduction benzimidazolium salts with NaBH_4 and Grignard addition with benzimidazolium salts. Thus we provided a new biomimic synthetic method for 13 kind of tetrahydroisoquinoline starting from carboxylic aicd and halid, gave a new idea of the synthesis for new drugs.It can make many kind ofβ-carboline alkaloids which have bioactivity to antibacterium, antivirus and antitumor to start from 1,2,3,4-tetrahydro -β-carboline.

本文以1,3-二甲基苯并咪唑碘盐和2-取代的1,3-二甲基苯并咪唑碘盐为原料,采用了NaBH_4还原和Grignard试剂加成两种方法,制备了13种1,3-二甲基苯并咪唑烷和2-取代的1,3-二甲基苯并咪唑烷作为四氢叶酸辅酶一碳单元转移新模型,在酸性条件下,以2-(3,4-二甲氧基苯基)乙胺作为接收一碳转移的亲核试剂,完成了13种重要的四氢异喹啉类化合物的新合成方法研究。

Bisbenzimidazolium salts were used as a tetrahydrofolate coenzyme model, and thus the biomimetic synthesis of twenty-four acyclic diketones as precursors for macrocyclic ketones was successfully accomplished by using the addition-hydrolysis reaction of the bisbenzimidazolium salts with alkyl magnesium halide, wherein six diketones have not been reported in literature.

在本文中,受四氢叶酸辅酶的一碳单元转移反应的启发,作者以双苯并咪唑盐作为四氢叶酸辅酶模型,利用格利雅试剂与双苯并咪唑盐的加成-水解反应,成功合成了二十四种作为麝香酮及类似大环酮重要前体的长链二酮,同时,提供了一种麝香酮及类似大环酮的仿生合成新方法。

The main business scope include: salt, industrial salt, health salts, bath salts, and seawater Nethersole.

主要经营范围:包括食盐、工业用盐、保健盐、沐浴盐、及海水素。

Furthermore, the effects of different metallic salts,nitrogen sources,carbon sources,temperature,pH,water content and fermentation time on the enzyme activity and the yield of the acid protease were studied and the results were as follows: both MnCl2 and CuSO4 could activate the protease while other metallic salts inhibited the protease on different levels; addition of 1 % bean flour and 1 % glucose could increase enzyme yield and enzyme activity by 71 % and 31 % respectively; the maximal yield of enzyme was achieved under the conditions of temperature at 40 ℃ and pH as 7.0; water content and fermentation time would also influence enzyme yield on different levels.

不同金属盐对该酶酶活及不同氮源、碳源、温度、pH、含水量以及发酵时间对菌株产酶的影响试验结果表明:MnCl2,CuSO4均对该酶有激活作用,其他金属盐类对该酶有不同程度的抑制作用;添加黄豆粉(1 %)和葡萄糖(1 %)可使菌株产酶酶活分别提高71 %和31 %;培养温度为40 ℃以及培养基起始pH为7.0时产酶最高;含水量和发酵时间对产酶也有不同程度的影响。

第4/67页 首页 < 1 2 3 4 5 6 7 8 9 ... > 尾页
推荐网络例句

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时,他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了

The enrich the peopling of Deng Xiaoping of century great person thought, it is the main component in system of theory of Deng Xiaoping economy, it is a when our country economy builds basic task important facet.

世纪伟人邓小平的富民思想,是邓小平经济理论体系中的重要组成部分,是我国经济建设根本任务的一个重要方面。