中和

Through the addition of rare earth oxidation La_2O_3 and CeO_2 into the electrode coating , the effect of rare earth oxidation on high temperature oxidation and sulphidation resistance is studied and the rational addition amount is suggested.

通过A402，A302，A202及Cr24Ni7不锈钢焊条熔敷金属的抗高温氧化腐蚀性能对比试验分析，设计了新的专用焊条合金系统Cr26Nil6，并在焊条药皮中分别添加微量稀土氧化物La2O3及CeO2，研究不同稀土氧化物添加量对焊条熔敷金属在空气中和含硫气氛中抗高温氧化及腐蚀性能的影响，从而确定了合理的稀土氧化物加入量。

A novel sulphonate oil-displacement surfactant was made in laboratory using ester and fuming sulfuric acid and by hydrolysis and neutralization technologies.

摘要用发烟浓硫酸对油酯进行磺化，水解、中和后制成了磺酸盐驱油剂。

According to sameprocess condition conducted industry test in the unit,the neutralization taken place byenamel glass reactor,the shallow sulphonation conducted by steel –glass reactor,theclay refining occurred by carbon-steel reactor,finally obtained sulphonation refiningoil and sulphonate.

按照相同的工艺条件在白油/磺酸盐装置进行了工业试验，在搪玻璃反应器中磺化，玻璃钢反应器中中和，碳钢反应器中白土精制，得到磺化抽余油和磺酸盐。

Sulfuric acid was sulphonation reagent, add the sulfuric acidquantity was 8%, reaction temperature was 60~65℃.The reaction occursbetween the feed oil and sulfuric acid,then add 30% of sodium hydroxidesolution conducted neutralization in the Pyrex standard react kettle,when the reactionfinished ,draw out the products by funnel,then the products react with 8%clay to refine received the sulphonation refining oil so as to review property andreceive rate of the shallow sulphonation refining oil .By the using the sulphonationrefining oil to blend lubricant,its quality is on-specification .

为验证其可行性，首先在实验室进行浅度磺化小试，原料油采用新疆原油经常压蒸馏、减压蒸馏、溶剂精制、溶剂脱蜡后的减压二、三线脱蜡油，发烟硫酸作为磺化剂，发烟硫酸加入量8%，反应温度60～65℃，用三口圆底耐热玻璃标准反应釜对原料进行发烟硫酸磺化，加入量30%氢氧化钠中和，分液漏斗抽提，在烧杯内加入量8%白土进行精制得到磺化抽余油，考察浅度磺化抽余油性质和收率，用磺化抽余油调合润滑油质量合格。

Objective:To investigate the stability of the main active constituent of snake gall sodium taurocholate,TCANa in 25% alcoholic solution and artificial gastric juice,and in the course of hot pressurized sterilization.

目的：考察蛇胆主要有效成分牛磺胆酸钠在25％乙醇液中和人工胃液中及其在热压灭菌过程中的稳定性。

The research dealt with the availability of dechlorination by zero-valent iron, optimization of the main factors on the dechlorination, options of the catalyst, kinetics of the dechlorination of chloroform, the effects of neutralization and flocculation on the removal of chloroform and tetrachloromethane, and so on.

实验研究的主要内容包括：金属铁还原脱氯的有效性，金属铁还原脱氯工艺主要参数的确定和优化，无机催化剂的筛选及其催化脱氯的效果，氯仿脱氯动力学，中和和絮凝过程对去除有机氯的影响等。

A suggestion is put forward to adding H2SO4 or (NH4)2SO4 into the mother liquor after calcium nitrate tetrahydrate separated for a further removal of residual Ca, thus the Ca content can be decreased to 0.35% from the previous 3.4%, and the viscosity of neutralized slurry to 0.04 ～0.08 Pa·s, with nice fluidity of slurry Water soluble phosphorus accoun ts to 88%～90%, and the process improves the adaptability of phosphate rock to nitrophosphate production.

提出分离四水硝酸钙后的母液加入H2SO4或(NH4)2SO4进一步除去母液中残钙，可使母液中钙含量由3.4%降到0.35%以下，中和器中料浆粘度可降到0.04～0.08 Pa·s，料浆流动性很好，产品中磷的水溶率可达88%～90%，并提高了硝酸磷肥生产对磷矿的适应能力。

Mercaptopropyl methyldimethoxysilane was synthesized by thiourea in the presence of tetramethylammonium iodine as a catalyst and mixed liquid containing ethylenediamine and trichloroethylene as a neutralizer, without solvent, in which the reaction temperature, catalysts ,neutralizer and their amounts were optimized.

以四甲基碘化铵为催化剂，乙二胺和三氯乙烯的复合液为中和剂，在无溶剂体系中，用硫脲法合成了甲基巯丙基二甲氧基硅烷。

A Photolysis of 5＇-deoxyadenosylcobalamin in neutral aqueous solution and methylcobalamin in neutral and acid aqueous solution has been investigated using pulsed, time-resolved photoacoustic calorimetry in the temperature range of 10-30℃. The resultant enthalpy changes, namely CoC bond dissociation energies for the above cobalamins, 129±17, 163±21 and 176±23kJ/mol, respectively, are consistent with the values obtained by thermolytic kinetic method.

运用光声量热法研究10～30°C温度范围内辅酶〓在中性水溶液中和甲基钴胺素在酸性和中性水溶液中的光解反应，测定了其光解反应的焓变，即Co—C键离解能分别为129±17，163±21和176±23 kJ／mol，这些值和文献中用热分解动力学方法测得的值一致。

Methods Vascular specimens from 41 patients with thromboangiitis obliterans and 14 normal controls were analyzed by PCR. The nucleic acid sequence of enhancer located in the upstream of immediate early gene of cytomegalovirus was used as target region for detection of cytomegalovirus DNA.

方法以人巨细胞病毒即刻早期基因上游的增强子为扩增区段，用PCR技术分析了41例血栓闭塞性脉管炎病变血管壁中和14例正常血管壁中人巨细胞病毒的感染情况。

She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了，但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

要是在劳改农场，你等着挨绳子吧！