酸碱的

The purpose and use of the label itself is to select ink unneglected factors, such as coplasticizer lavation products on the label, require ink with good acidproof of alkalescence, fat; labels in the open air, heat and the rain suffer the test of time in the choice of ink should pay attention to in the fast light, waterproof, heat-resistant, resistant to acid-base in the areas of performance.

标签的用途及使用环境也是选择油墨不可忽视的因素，如日化洗涤品上所用的标签，要求油墨具有良好的耐酸碱性、耐油脂性等；在户外使用的标签，要经受风吹日晒雨淋的考验，在选择油墨时必须注重在耐光、耐水、耐高温、耐酸碱等方面的性能。

Taking Wuliangsuhai Lake,which is a typical shallow weedy lake lies in Hetao irrigate district in the north of China,as a research object,combining the measured water quality data with the spatial data,using the method of Principal Components Analysis based on factor analysis,the water quality parameters of WL are summarized into seven principal components,namely the index ...

以位于我国北方的河套灌区中的草型浅水湖泊乌梁素海为研究对象，将实测的湖泊水质监测数据与空间数据结合，采用基于因子分析的主成分方法将乌梁素海的水质参数概括为7个主成分，即：富营养化特征指标、湖泊盐化特征指标、湖泊有机物污染指标、湖泊形态特征指标、水体酸碱指标、水体藻类生物量指标、植物生长环境指标。

The effects of DCP content, content of in situ formed LiAA or NaAA and LiOH/AA or NaOH/AA molar ratio on the mechanical and water-swelling properties of the vulcanizates were discussed.

同时，硫化胶的力学性能和吸水膨胀性能在很大程度上取决于酸碱摩尔比，过量的AA会给硫化胶的性能带来不利的影响，但碱稍微过量（MeOH/AA摩尔配比为1.0～1.1）对硫化胶的性能影响并不大。

With the acid and alkali titrate method,we got the mean molecular weight and discussed the monomer density,the initiator amount used, chain transfer agent factor as well as reaction temperature to molecular weight influence tendency and d.

聚丙烯酸钠在很多领域的广泛应用，我们采用水溶液聚合法中的中和法合成低分子量聚丙烯酸钠，用酸碱滴定的方法测得聚丙烯酸的平均分子量，并探讨了单体浓度、引发剂用量、链转移剂用量以及反应温度等因素对聚丙烯酸钠分子量的影响趋势和程度。

The Knoevenagel condensation reactions between aromatic and α,β-unsaturated aromatic aldehydes with barbituric acid can effectively be performed in ionic liquid without additional acid or base catalyst, it is a simple efficient method for the synthesis of benzylidene barbituric acids, which have been widely used in pharmaceutical chemistry as well as in organic synthesis.

芳醛、α，β-不饱和芳醛和巴比妥酸间的Knoevenagel缩合反应能在离子液体中没有酸碱催化剂的条件下顺利进行，是合成在药物化学和有机合成中有广泛用途的苯亚甲基巴比妥酸类化合物的简单有效的方法。

Both niobic acid and niobium oxide can be used as either catalyst,promoter or support in the heterogeneous catalytic reactions,such as selective oxidation,hydration,hydrolysis,alkylation,dehydrogenation and hydrogenation,because of their acidic and redox properties.

作为一种新型的催化材料，铌酸-氧化铌由于其独特的酸性和氧化还原性正受到越来越多人的关注。它可以作为催化剂的活性组分、助剂或载体使用，在烃类转化、选择性氧化、水解、水合、缩合、加氢脱氢等若干酸碱和氧化还原反应中得到广泛的应用。

Study on synthesis of phosphonic acid with thiadiazole and corrosion resistance on copper;2. Synthesis of N,N-dimethyl-1-aminomethane-1,1-di phosphonic acid N-oxide and researches on its corrosion and scale inhibition performances;3. Two phosphonic acid s: dodecylamine-N,N-dimethylene phosphonic acid and dodecyl phosphonic acid,were used to modify zirconia stationary phase in this paper.

通过红外、元素分析对2种不同类型的膦酸化合物改性氧化锆的改性条件和改性机理进行了研究，结果表明：十二烷基膦酸通过Lewis酸碱作用改性，室温浸泡即可达到满意的吸附量；而具有螯合结构的十二胺-N，N-二亚甲基膦酸与氧化锆结合时存在较强的络合作用，最佳改性条件为酸性条件下加热回流。

Methods It is introduced a new compliance concept of renal compensatory adjustment action by the clue of functional relationship of PaCO2 and〔HCO3(superscript -)〕 to reflect the strength of compensatory adjustment action with changed scope of compliance of renal compensatory adjustment action. Applying curve fitted method quantitates ability of renal compensatory adjustment in acute respiratory acid-base balance disturbance.

以血浆PaCO2和〔HCO3〕之间的函数关系为线索，引入肾代偿调节作用的顺应性这一新概念，用肾代偿调节作用顺应性的变化范围，反映其代偿调节作用的强度；应用曲线拟合法，对急性呼吸性酸碱平衡紊乱时肾的代偿调节能力进行量化。

In order to meet the 21st century, mankind's most advanced load pipeline demand, Donghong industry representatives took the lead in the country to introduce the most advanced level of today's international steel mesh skeleton polyethylene pipe, high pressure steel wire braided reinforced polyethylene composite pipe, Germany, PP-R pipe , polyethylene pipe, UHMW wear, corrosion, acid and alkali pipe production line and injection molding machine, and through advanced detection methods, excellent product quality, perfect after-sales service, creating a "Donghong" This well-known brand.

为满足21世纪人类对最先进承载管道的需求，东宏实业率先在国内引进代表当今国际最先进水平的钢丝网骨架聚乙烯复合管材、高压力钢丝编织增强聚乙烯复合管材、德国 PP — R 管材、聚乙烯管材、超高分子量耐磨、耐腐蚀、耐酸碱管材生产线及注塑机，并通过先进的检测手段、过硬的产品质量、完善的售后服务，造就了&东宏&这一知名品牌。

Progresses on reactions of NO, CAN, and hydrazone Reactions of NO with olefines, phenols, amines, arylhydrazines, Schiff bases and nucleosides are firstly reviewed.

本论文主要研究了一氧化氮及硝酸铈铵与简单醛酮腙、α，β-不饱和酮腙的反应，全文共分五个部分： 1、一氧化氮、硝酸铈铵及腙的反应研究首先对具有特殊生物活性的NO与烯、酚、胺、肼、Schiff碱、核酸碱基等有机物的反应做了全面的总结。

Fancy gold-plated dangling earrings with facetted White Opal crystals.

花式镀金悬垂耳环与facetted白欧泊水晶。

This essay chooses the study aim from biology teachers in middle school in Shi Jiazhuang which tells us that most of the middle school biology teachers in Shi Jiazhuang have the"burnout", lower successfulness, individualize.

本文选取石家庄市初中生物教师作为研究对象，运用问卷调查的方法对石家庄市初中生物教师职业倦怠的现状进行调查，调查结果发现，石家庄市初中生物教师这一群体普遍存在职业倦怠，情感枯竭程度偏高，成就感偏低，去个性化程度最为严重。