铈的

The electro-oxidation in anion exchange membrane system can be carried out in larger range of anolyte acid but cation exchange membrane system only for over 0.75mol/L.

发现阴离子膜电解体系可以在较大的阳极液酸度范围内进行铈的电解氧化，而阳离子膜电解体系则必须在大于0.75mol／L的酸度条件下进行。

In this study, the modified precipitation and recrystallization processes combined with a controlled calcination process for fabricating the ceria with large particle size and high appearance density was reported.

报导了一种与控制烧结大粒度，高表面比重的氧化铈的过程相结合的改性沉淀与再结晶过程。

Cerium compound, inorganic or organic excl. ferrocerium and natural cerium compounds

铈化合物，无机或有机的（不包括铁铈和天然铈化合物

XRD experimental results show that the doping of Cerium change the crystal assembling and it turn out to be a kind of minicrystal which is an intergradation from crystal to unformed structure, and this structure makes the material more active catalyze performance.

XRD表征结果表明，铈的加入改变了铁氧化物载体的晶体结构，形成了介于晶体和无定型之间的微晶体结构，利于其表现出较高的催化活性。

Various inorganic acid, such as ammonium chloride, copper sulfate, aluminum sulfate, mercury chloride, cerium sulfate and cerium chloride, have been evaluated for copper powder, zinc powder, or tin powder-mediated allylation reactions of carbonyl compounds with allyl bromide in aqueous medium.

结果表明：在同样的反应条件下，与铜粉或锌粉作用的此类反应相比，锡粉能更好的作用羰基烯丙基化反应，并且该反应的产率都比较高；在同样的金属促进剂存在下，硫酸亚铈的促进性能是所有无机酸中最好的。 2、研究了二氧化碳促进羰基化合物烯丙基化反应。

A method has been deviced to improve the form of the ceric iodateprecipitate by slow precipitation in homogeneous solution.

利用碘酸亚铈能溶解于稀酸溶液而碘酸铈则不溶的区别，先用过氧化氢把全部铈离子还原，再加入碘酸铵，然后进行氧化，使碘酸铈在均匀溶液中沉淀出来。3。

Multiple-walled carbon Nanotubes were used as carrier to load cerous sulfate catalyst for catalytic synthesis of n-butyl propionate Single factor and orthogonal experiment methods were applied to investigate the effects of the molar ratio of butyl alcohol to propionic acid, cerous sulfate mass fraction and reaction time on the conversion of propionic acid and the optimal technical conditions were determined as:ratio of butyl alchhol and propionic acid 1.5:1, cerous sulfate mass fraction 15% and reaction time 70 min.

以多壁碳纳米管作载体担载硫酸铈催化合成丙酸丁酯。分别采用单因素和正交实验方法考察了醇酸摩尔比、硫酸铈质量分率和反应时间等主要因素对丙酸丁酯得率的影响，并确定了最佳工艺条件为：醇酸摩尔比1.5：1、硫酸铈质量分率15%和反应时间70 min。

On the basis of analysis of exiting problems, it is thought impendent and necessary for the Al-Si alloy to develop a healthy、effective alternative with high quality as well as its related techniques.

含铈的混合稀土是Al Si合金良好的变质剂，无渣无污染，节约能源，提高生产效率，提高合金的实收率，降低产品的综合成本，有着良好的应用前景。

61Ppm, REE distribution patterns of apatite standarded by NASA are classified into two types: The one is concave,"hat-shaped" REE pattern which is slightly enriched in intermediate REE and has a weak or even wanting Ce anomaly. To which, the sandy phosphorite of Jile is representative; the rest REE pattern is shown by more or less complete curve, although distinct Ce negative anomaly or weak Ce positive anomaly is shown up well. The stromatolitic apatite is the representative of this type.

其稀土元素北美页岩标准化配分型式主要分为两类：一类为中稀土略显富集的帽状形态的稀土元素配分型式，微弱的铈负异常或无铈异常，以极乐矿段砂屑磷块岩样品最为典型；另一类为轻稀土、中稀土和重稀土自然分异的三段弧形折线衔接而成的稀土元素配分型式，铈负异常较明显或微弱的铈正异常，以叠层石柱体磷灰石最典型。

Dunng precipitation, a certain amount of mineral acid such as nitric acid served as an additive, to adjust the precipitation and crystallization processes of cerium oxalates.

沉淀过程中，以一定数量的矿物酸如硝酸作为添加剂，来调整草酸铈的沉淀和结晶过程。

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。