查询词典 acid precipitation

Iron oxide Nanocrystalline Powders were prepared respectively by precipitation, stearic acid gel, polyethylene glycol gel, citrate gel and iron citrate combustion. The influence of synthesis method on the final product, such as the crystal structure, crystalline grain size, dispersivity were studied.

分别采用沉淀法、硬脂酸法、聚乙二醇法、柠檬酸法和柠檬酸铁快速燃烧法制备纳米氧化铁晶体，研究了这 5种制备方法对粉体晶型、平均粒径、磁性、分散性的影响。

The measured porosity data and the observations of thin sections and blue epoxy resin-impregnated thin sections show that the diagenesis in the Qingshui sag can be divided into two stages and five substages. There exist three abnormally high porosity zones vertically in the Cenozoic reservoirs in the Qingshui sag, Liaohe Depression, whose genesis is related to the eluviation of precipitation and the dissolution of organic acid.

根据岩心实测孔隙度、薄片观察、铸体薄片和扫描电镜等实际资料，将辽河盆地西部凹陷清水洼陷新生界成岩作用划分为早成岩阶段和中成岩阶段2个阶段，其中包括5个亚期，指出该洼陷新生界纵向上发育3个异常高孔带，这种异常高空带的形成与大气降水淋滤作用和有机酸对储层的溶蚀作用有关。

Natural high-quality granite rollers with acid resistance, corrosion resistance, wear-resistant, non-and material from a chemical reaction, in the grinding process, such as natural cooling characteristics; granite roll grinder for grinding paint art, paint, ink, medicine, chemical industry, Date use of cosmetics and plant protein drinks (such as: almond Lu, peanut milk, pumpkin Lu), etc., especially in high-quality natural granite grinder grinding plant protein drink production with no waste, non-precipitation, not±, high raw material utilization ( is over 98%) and other unique features of plant protein drinks are the preferred manufacturer of grinding equipment.

天然优质花岗岩石辊具有耐酸碱、耐腐蚀、耐磨损、不和物料起化学反应、在研磨过程中自然冷却等特点；花岗岩石辊研磨机适用于研磨美术颜料、油漆、油墨、医药化工、日用化妆品及植物蛋白饮料（如：杏仁露、花生奶、瓜籽露）等，特别是天然优质花岗研磨机研磨生产的植物蛋白饮料具有无渣滓、不沉淀、不变味、原料利用率高（达98%以上）等独有特点，是植物蛋白饮料生产厂家首选的研磨设备。

The results of its intrinsic fluorescence spectroscopy and fluorescence phase diagram showed that when the guanidine hydrochloride concentration in denaturation solution was about 1.0 mol/L, there existed a partially folded intermediate of Bacillus amyloliquefaciens a-amylase during its unfolding procedure, which followed a three-state model; the result of its fluorescence probe showed that when the guanidine hydrochloride concentration in denaturation solution was about 1.0 mol/L, there existed some stable hydrophobic regions, which could interact with a hydrophobic reagent 8-anilino-1-naphthalene sulfonic acid, in the partially folded intermediate of Bacillus amyloliquefaciens a-amylase; and the results of fluorescence quenching using acrylamide and potassium iodide as quenchers showed the distribution of Trp residues in Bacillus amyloliquefaciens a-amylase in different denaturation solution, with the maximum number (8) of tryptophan residues in a partially folded intermediate Bacillus amyloliquefaciens a-amylase molecule could be quenched by potassium iodide; and the results of their protein electrophoresis and SEC showed that no aggregate or aggregate precipitation of Bacillus amyloliquefaciens a-amylase formed during the whole unfolding procedure of Bacillus amyloliquefaciens a-amylase induced by guanidine hydrochloride.

内源荧光光谱和荧光相图结果表明，当变性液中盐酸胍浓度约为1.0 mol/L时，芽孢杆菌a-淀粉酶的去折叠过程中出现一个部分折叠中间体，其去折叠过程符合&三态模型&；荧光探针结果表明，在溶液中盐酸胍浓度约为1.0 mol/L时，中间态芽孢杆菌a-淀粉酶分子中存在着能够与探针分子1-苯胺基-8-萘磺酸结合的稳定的疏水区域；荧光猝灭研究给出了不同程度变性的淀粉液化芽孢杆菌a-淀粉酶中的Trp的分布情况，结果表明中间态芽孢杆菌a-淀粉酶分子中能够被碘化钾猝灭的位于分子表面的色氨酸残基数目达到最大的8个；蛋白电泳和体积排阻色谱结果表明，在盐酸胍诱导的芽孢杆菌a-淀粉酶分子的整个去折叠过程中，不会以共价键或非共价键形式形成芽孢杆菌a-淀粉酶分子之间的集聚体或集聚体沉淀。

The results of its fluorescence probe showed that when the guanidine hydrochloride concentration in denaturation solution was about 1.0 mol/L,there existed some stable hydrophobic regions,which could interact with a hydrophobic reagent 8-anilino-1-naphthalene sulfonic acid,in the partially folded intermediate of Bacillus amyloliquefaciensα-amylase;with the denaturation concentration increasing,the stable hydrophobic regions disappered.the results of fluorescence quenching using acrylamide and potassium iodide as quenchers showed that using acrylamide as quenchers,with the protein denaturation extent increasing,the number of Trp that can be quenched increased untill all the Trp residues were quenched;Using potassium iodide as quenchers,with the maximum number(8) of tryptophan residues in a partially folded intermediate Bacillus amyloliquefaciensα-amylase molecule could be quenched by potassium iodide;with the denaturation concentration increasing,the number of Trp that can be quenched decreased to 5.the results of their protein electrophoreses and SEC showed that no aggregate or aggregate precipitation of Bacillus amyloliquefaciensα-amylase formed during the whole unfolding/refolding procedure of Bacillus amyloliquefaciensα-amylase induced by guanidine hydrochloride or urea.

ANS外源荧光探针结果表明：盐酸胍诱导的芽孢杆菌α-淀粉酶分子去折叠过程中存在着能够与探针分子1-苯胺基-8-萘磺酸结合的稳定的疏水区域；而随着芽孢杆菌α-淀粉酶分子在盐酸胍溶液中变性程度的加深，这一疏水区域逐步被瓦解。丙烯酰胺和碘化钾猝灭结果表明：在盐酸胍溶液中，随着芽孢杆菌α-淀粉酶分子变性程度的进一步加深，其分子内能够被丙烯酰胺接近的色氨酸残基逐渐增多，直至全部被猝灭。但位于芽孢杆菌α-淀粉酶分子表面的能够被碘化钾猝灭的色氨酸残基，在中间态芽孢杆菌α-淀粉酶分子中数目达到最大的8个，而随着其分子变性程度的进一步加深，反而减少至5个。

The carboxylic acid and its ester may have straight chain or branched chain, and the catalyst is solid in the carrier of zirconia in precipitation process sol or marketable product.

其中，羧酸及其酯为C 2-20 羧酸及其酯，可以是直链或支链，催化剂是以固体的形式加入，载体二氧化锆是以沉淀法制备的凝胶，也可以直接用市场上购买的二氧化锆。

The total precipitation for the law synthetic micrometres belt burr of Tansuanli (Li2CO3) and carbonic acid manganese (MnCO3) ball for damages caused calcine material prepared by a porous spherical type of spinel LiMn2O4 as a lithium-ion batteries positive materials, and through the valuable objects to the modified surface active agent, scattered porous ball into nano particles.

高手帮我翻一下。谢谢本文以共沉淀法合成微米级的带毛刺的碳酸锂（Li2CO3）和碳酸锰（MnCO3）球为前驱物通过高温煅烧而制备出多孔球状的尖晶石型LiMn2O4作为锂离子电池的正极材料，同时通过对前驱物加表面活性剂的改性，分散多孔球而成为纳米粒子。

It was demonstrated that glacial acetic acid could promote the transition from hydroxide to oxide and enhance the crystallization of product, which is consistent with the results in nano-MgO preparation by modified precipitation.

说明冰乙酸在此制备过程中的促进了由氢氧化物到氧化物的转变，有利于产物的晶化，这与修饰沉淀法制备纳米MgO中的结论是一致的。

Methods Conjugated with protein precipitation with trichloroacetic acid, BCA method was used. According to the positive relationship of protein content with the 570 nm absorbance, protein content was calculated in powdered milk.

使用三氯乙酸沉淀蛋白质后，运用BCA法，在570nm波长处，分别测定标准蛋白质应用液与样品稀释液的吸光度值，基于测定液中蛋白质含量与其吸光度值呈正比关系，计算出样品中蛋白质的含量。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。