查询词典 react

Using silicon and metallic iron,α-Si_3N_4 olivary microparticles with a diameter of about 300～500 nm have been obtained at 650℃.When silicon and metallic aluminium were used to react with ammonium chloride,α-Si_3N_4 nanowire bundles with diameter of about 8 nm can be also obtained at 600℃.Since all of the starting materials used are relatively cheap,the methods will have potential prospect in industrial application.3.Graphite-like carbon nitride nanowire bundles with diameters of 200-500 nm were synthesized from the solid state thermolysis of melamine at relatively low temperature(400℃).

相关研究工作的成果发表在International journal of applied ceramicstechnology.2、以廉价的硅铁合金和氯化铵为原料，在600℃合成了α相的氮化硅纳米线束，单根纳米线直径8 nm，长达800 nm，考察了反应温度和反应时间对产物纯度和形貌的影响；以硅粉和铁粉为原料合成了纯度良好，直径为150～500 nm的α-Si_3N_4亚微粒子；以硅粉和铝粉为原料在400-600℃合成了直径为10 nm左右的α相氮化硅纳米线束。

Because there are many articles about organozinc reagents react with aldehyde, we investigated the preparation of bisorganozinc reagents and its reactions.

第一章：有机卤化锌试剂在有机合成中研究进展本章主要对有机锌试剂，特别是带官能团的有机卤化锌试剂的产生、发展、制备及其在有机合成中的应用作了详细的综述。

The resulting organometallics can react with many organic electrophiles,which can tolerate many functional groups. We have synthesized a class of organozinc species and apply them in ring opening of epoxides, affording cis-addition products.

但也因为反应活性低，常常需要在Lewis酸的存在下，或将有机锌试剂用过渡金属络合物转换为相应的有机过渡金属试剂后才可以与多种亲电试剂反应。

However, the advantages of globalism overweigh its disadvantages, and we should react positively to globalism and antiglobalism, taking their advantages and avoiding the disadvantages to become their beneficiaries.

但全球化的利远大于弊，面对全球化和反全球化，我们应该积极应对，趋利避害，成为全球化的&收益者&。

The results showed that the 56kD and 26kD antigens had better immunogenicity and could not react with the sheep positive serum of Mycoplasma pneumonia and negative serum of E. ovis. Of the 64 samples detected, the positive rate was 66.7%(42/64), 22.9% higher than that of direct microscopic examinerion.

结果表明，56kDa和26kDa的羊附红细胞体抗原具有较好的免疫性，而且不与羊附红细胞体阴性血清和羊支原体病阳性血清发生交叉反应，具有较好的特异性；ELISA检测的64份血清样本的阳性率为66.7%，比涂片镜检高22.9个百分点。

The subject of this research is Tsannkuen Multination Group, the research methods included literature review, case study and in-depth interview.(1) Enterprise do not get into financial crises overnight, financial crises are the result of prolonged financial malaise.(2) An enterprise has perfectible conduct management system, will really to reduce the possibility for enterprises financial crises.(3) There are four key successful factors to react enterprise financial crises for Tsannkuen Multination Group were follow:"Crises management system","Financial management planning","Disperse risks concept", and "Disclosing information of financial statement".

本研究以灿坤集团作为研究对象，研究方法采用文献分析、个案分析以及深度访谈，兹将本研究结论归纳：(1)企业财务危机不是突然发生的，而是经过一段时间财务恶化的结果；(2)企业拥有完善的经营管理机制，确实会降低企业发生财务危机的可能性；(3)灿坤集团因应企业财务危机共计四个关键成功因素，分别为：「危机管理制度」、「财务管理计画」、「分散风险的概念」以及「财务报表揭露的资讯」。

A new imidazolinyl intermediate is prepared from phenylacetic acid and diethylenetriamine firstly, and then they react with the solution of sodium chloroacetate into the imidazolinyl quaternary ammonium salt.

以二甲苯为溶剂，苯乙酸和二乙烯三胺为原料，经酰胺化和环化脱水合成了新型咪唑啉化合物，并用氯乙酸钠溶液对其进行改性得到了苯乙酸咪唑啉季铵盐。

The phosphine was quickly oxidized by triplet oxygen to phosphineoxide with a free radical chain reaction at relatively low temperature; while at high temperature, the phosphine react with singlet oxygen through a three member ring intermediate to form phosphineoxide and phosphinate as the product.

在相对较低温度时，膦化物与基态氧发生自由基链反应，膦化物很快被氧化为氧化膦；在相对较高的温度，膦化物与激发态氧直接作用，通过三元环状中间体而最终生成氧化膦和次磷酸酯。

The reaction between 2-hydroxy benzoic acid and 3-methyl-1-butanol using phosphotungstic acid as catalyst were studied and the best catayst amount, react'ratio and reaction time were also discussed.

研究以磷钨酸为催化剂，由水杨酸与异戊醇制备水杨酸异戊酯的工艺条件，找到最佳催化剂用量，最佳反应时间及醇酸摩尔比，并研究了带水剂对反应收率的影响。

Results show that protons are liberated by dehydration or dehydroxylation after calcination at 500℃. These protons disrupt the silicon-oxygen-aluminium bridges where there are Al substitutions in the tetrahedral sheet of the montmorillonite. Some of silicon-oxygen and aluminum-oxygen tetrahedral invert to react with the pillaring agents and yield covalent bonds which firmly fix the pillars to the host clay. The Al-MMT are thermally and hydrothermally stable up to 700℃.

经过500℃高温焙烧后，交联剂经脱水或脱羟基释放出质子攻击蒙脱土四面体层中Si-O-Al四键，硅氧四面体和铝氧四面体发生翻转，与交联剂发生反应生成共价键，形成稳定的层柱黏土材料，在700℃高温下，Al-MMT材料不仅具有较好的热稳定性，而且具有较好的水热稳定性。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。