铈的

Ce2(SO4)3 was used as an inexpensive and effective catalyst for the Friedel-Crafts alkylation of aromatic compounds with benzyl alcohol s, allyl alcohols and benzyl chlorides.

硫酸亚铈作为一种便宜的和有效的催化剂催化芳香化合物与苄基醇、烯丙醇类化合物和苄基氯的傅-克烷基化反应。

Ce2(SO4)3 was used as an inexpensive and effective catalyst for the Friedel-Crafts alkylation of aromatic compounds with benzyl alcohols, allyl alcohol s and benzyl chlorides.

硫酸亚铈作为一种便宜的和有效的催化剂催化芳香化合物与苄基醇、烯丙醇类化合物和苄基氯的傅-克烷基化反应。

The value of Ce anomaly reflects the redox condition during the formation of apatite.

铈异常的大小反映磷灰石沉积时的氧化还原条件的强弱。

Moreover, this kind of novel complexes can be transformed to the analogous complexes as the complex 41 by treatment using 〓Ce〓.

而且这类络合物还可以在硝酸铈铵的作用下重新生成与络合物41结构类似的在萘环上带有取代基的双铁络合物。

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。

It is demonst rated that the cerium compounds on the zinc powder subst rate enhance the elect rochemical performance of the zinc elect rodes.

mAh.g - 1，表明在锌粉基体上形成的铈化合物可以改善锌电极的电化学性能。

With the increase of Ce content, light olefins selectivity increases too.

随铈含量的增加，催化剂的烯烃选择性有所增加。

Then, it was condensed with-valine methyl ester to form a chiral imine, which was reacted with allyl zinc bromide in the presence of CeCl3·7H2O to afford the corresponding chiral homoallylic amine with high optical activity.

-N-Boc-3-苯基-2-氨基丙醛与-缬氨基酸甲酯缩合生成手性亚胺，在七水合三氯化铈（CeC13·7H2O）催化以及底物的手性诱导作用下，该手性亚胺与烯丙基溴化锌经不对称加成反应合成了高光活性的单烯丙基化手性胺。

The mechanism of magnetic field or electric field on solid phase transformation was discussed using the quasi-free electron theory.

根据合金电子理论，探讨了磁场、电场对铝锂合金时效过程的影响机制，定性分析了稀土元素铈与磁场的交互作用。

Objective To introduce a new method for determination of urinary iodine by using ammonium persulfate digestion, this method was modified from the national standard method of chloric acid digestion.

目的 介绍修订后的尿碘测定标准新方法，即尿中碘的过硫酸铵消化。砷铈(As3+、Ce4+)催化分光光度测定方法，建议各级实验室应尽快应用。

For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether

年美国个人破产法的一个改动使得破产登记急速下降，而后引起了信用卡大规模的亏损。

Eph. 4:23 And that you be renewed in the spirit of your mind

弗四23 而在你们心思的灵里得以更新