为...的前驱

So, the smaller precursor and product were obtained. When decomposed into ceria particles, the precursor burst apart from～510nm to～300nm because of the gas come into being and expand.

在煅烧分解过程中，前驱物分解为二氧化铈粉末，由于气体的产生、膨胀使前驱物崩裂，发生崩裂及抽空行为，颗粒度由前驱物的～510nm变为产物的～300nm。

The washing procss of the precursor by water and alcohol can effectively reduce the hard aggregations.The best temperature for calcination of cobalt blue prceursor is about 950℃.

前驱体的洗涤过程采取水洗加醇洗的方法可有效减少样品的硬团聚现象，且前驱体的最佳煅烧温度为950℃左右。

The results show that, using trioctylphosphane oxide or hexadecylamine as ligand, all of precursor ［In(η5-C5H5)］ decomposite and form the indium nanoparticles.

利用十六烷基胺或氧化三辛基膦配位体的作用，前驱体均可分解得到铟纳米颗粒；而在HDA相对含量高、溶剂中不含水和在紫外线照射作用下，前驱体分解反应产物为铟纳米线。

The paper compares the reaction of disinfectants of Cl,ClO_2 and ClO_2/Cl to 9 kinds THMs prodrome such as phenol,including volume from disinfectants on their prodrome contents,reaction pH values,reaction time,and reaction temperature.

主要考察了氯、二氧化氯和二氧化氯/氯(二氧化氯占混合溶液的质量分数为50%，90%)这3种消毒剂与苯酚等9种THMS前驱物的反应，并对这3种消毒剂在前驱物含量、反应pH值、反应时间和反应温度等条件下生成的氯仿量进行了比较。

It includes the following steps: extract trivalent iron ion and divalent iron ion in water phase through organic extractant, get predecessor of; absterge it with secondary distilled water for2-3 times and get pure load metal predecessor of organic phase; mix organic phase of Mg2 and Fe3 with mol rate of 1:2 and introduce them into autoclave, add distilled water according to the rate of 3:1 or 4:1 of organic phase and water phase and airproof it, and then mix it fiercely, stripping with hydrothermal method at temperature between 200 degree C and 300 degree C and make them react for 2.5 hours; cool it to the room temperature under natural condition, separate liquid and centrifugalize it, absterge it with absolute alcohol for 2-3 times and dry it at temperature of 50 degree C for 30-180 minutes, then get product of magnesium ferrite.

包括如下步骤：通过有机萃取剂来萃取水相中的三价铁离子和二价镁离子，制得有机相前驱物；用二次蒸馏水洗涤2-3次，获得纯净的负载金属有机相前驱物；按照Mg 2 和Fe 3 摩尔比1∶2将有机相混合均匀后引入高压釜中，按照有机相与水相的比例为3∶1或4∶1加入蒸馏水，密封后，对溶液进行强力搅拌，水热反萃的温度在200-300℃之间反应2.5小时；自然冷却至室温，分液，离心分离，用无水乙醇洗涤2-3次，在50℃下干燥30-180分钟，得铁酸镁产品。

The SEM test results indicate that the grain size of the material become bigger with the temperature rising but the granulometric distribution has a still uniform distribution.

通过DTA－TG测试，确定了前驱体粉料的热处理温度制度，结合XRD和SEM分析，最终前驱体的热处理温度为900℃左右。

The effects of the spray-drying process of the ammonium paratungstate and the carburization temperature on the formation of the precusor and WC powder were investigated.

采用喷雾干燥-固定床法制备碳化钨粉末，研究了喷雾干燥和碳化反应温度对制备偏钨酸铵前驱体以及碳化钨的影响，前驱体粉末呈现均匀的球状形态，平均粒径为10~20μm，喷雾温度对影响粒径大小和分布影响小；400℃的进口温度下进行喷雾干燥，喷雾粉末仍然保持偏钨酸铵原来的基本组成不发生分解。

The peroxide precursor of barium titanate and barium titanate nanopowder prepared were characterized to be BaTi(H2O2)2O3 by TGA-DTA, XRD, TEM, SEM, and XREDS.

借助TGA-DTA、XRD、TEM、SEM等分析测试手段，证实所制得的钛酸钡过氧化物前驱体为BaTi(H2O2)2O3，其煅烧产物纳米钛酸钡粉体的粒径在20～40nm，探讨并提出了过氧化物前驱体热分解法制备纳米钛酸钡的反应机理。

The results showed that functional nanometer ITO powders of 30-50nm size with dispersion performance can be prepared. The condition is that indium salt concentration is 88mmol/L, SnO2/In2O3 =5.3wt%, reaction solution PH value is 8, The precursor are thermally reduced at 450 ℃ under hydrogen gas ,at the sametime adding 6at.% KC1 salt to indium tin salts. Thus, satisfactory and stable dispersion of ITO particles in aqueous solution is obtained only through simple mechanical force.

KCl、反应铟盐浓度88mmol/L，掺杂比SnO_2/In_2O_3≈5.3wt%，维持PH值为8的反应条件下制备前驱体，前驱粉体在450℃，氢气气氛煅烧的条件下可生成功能性的具有很好分散性能的ITO粉末，粒径大小为30—50nm，此制备得到的粉体通过简单的机械分散可直接稳定的分散于水、醇介质，若通过分散剂处理后的分散体系可以稳定存在两个月以上。

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。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失