查询词典 iridium

Lightfoot et al have developed one of these iridium-based systems for the stereocontrolled synthesis of lilial by asymmetric reduction of an allyl alcohol and subsequent oxidation of the alcohol.

Lightfoot等发展了一种基于铱的系统，通过烯丙醇和第二阶段酒精氧化的不对称还原，用来进行铃兰醛的立体控制合成。

The company of "high quality products and services" business purpose, the successful marketing agent or the following series: Leopard-3 filter, oil seals, belts, Philips, the German Bosch series, the U.S. champion platinum-iridium the door Spark plugs, wiper, car-series car accessories, Hingis Symphony bulbs, boneless Wiper, Germany FOX boneless Wiper, Japan Denso spark plugs, 3 M double-sided adhesive, the United States satisfied that the application of automotive lighting, Korea LOOKEE, ZER Xenon headlamps, radar gun alarm, Qufu days Bo series, Guangzhou Seiko belts, wiper-film-series, Xiang Huoju spark plugs and high-tension lines, Japan Bando belt, Samsung belts, red plastic camel, red plastic Guchuan , And other various tubing.

公司本着"优质产品、优质服务"的经营宗旨，成功地代理或经销了以下系列产品：豹王三滤、油封、皮带、飞利浦、德国博世系列产品、美国辉门冠军铂铱金火花塞、雨刮、车喜系列汽车辅料、吉斯幻彩灯泡、无骨雨刮、德国FOX无骨雨刮、日本电装火花塞、3M双面胶、美国纳施达汽车照明、韩国LOOKEE、ZER氙气大灯、雷达测速报警器、曲阜天博系列产品、广州精工皮带、雄顺系列雨刮片、湘火炬火花塞及高压线、日本阪东皮带、三星皮带、骆驼红胶、谷川红胶、各种油管等。

The iridium layer commonly used to support catastrophism fits into this theory as evidence for the extreme volcanism that would have been produced by the eruption of Larasia and Gondwana.

至于那个支持灾变说的铱异常层，则可能是拉拉西亚和冈纳德万喷发时特别强大的火山作用的产物。

As well as activity was exhibited. Theaddition of cinchonidine led to a remarkable increase in the reaction rate, as confirmed bythe IR study that the modifier activates the carbonyl groups of the reactant through itsquinuclidine nitrogen. On the contrary,〓 exerted a strong inhibition effect on theenantioselective hydrogenation. Chapter 3 Finely dispersed polyvinylpyrrolidone-stabilized iridium andbimetallic clusters were prepared by the alcohol-water reduction method.

第三章 采用醇水还原的方法制备了聚乙烯基吡咯烷酮稳定的铱纳米簇及双金属纳米簇，对丙酮酸甲酯的催化氢化表明，在铱金属簇催化体系中，辛可尼定不仅诱导了一定的对映选择性，同时对反应活性有明显的促进作用，平均反应速率可提高2-6倍。

On some occasions, we would have to use Iridium satellite phones for communication.

在某些情况下，我们必须用铱卫星电话交流。

The Iridium luminaire family includes CosmoPolis and ...

铱灯具系列包括大都会和。。。

Iridium-day electronic products related to all walks of life, days of Iridium products in the same industry are outstanding.

天铱电子开发的产品涉及到各行各业，天铱开发的产品在同行业中属于佼佼者。

On the basis of catalytic action of iridium on the oxidation reaction of xylene cyanol FF by the potassium periodate in the medium of 0.02mol/L H2SO4 and heating at 95℃, a new catalytic kinetic spectrophotometry for the determination of iridium is established.

在0.02mol/L硫酸介质中及95℃的加热条件下，对高碘酸钾氧化二甲苯蓝FF的褪色反应具有显著催化作用，据此建立了催化动力学光度法测定痕量依的新方法。

Interdiffusion problem of iridium/ rhenium was studied during preparation of iridium/ rhenium thruster.

在电子探针测量的基础上，根据扩散理论和Ir-Re相图数据，建立了一个全新的Ir/Re两相扩散模型。

Compared to bis(1-phenylisoquinolyl-N,C2') iridium, the iridium complex containing the triarylamine-based picolinic acid displays increased MLCT transition and low oxidation potential and is expected to be a promising red phosphorescent material.

与传统的二(1-苯基异喹啉)(吡啶-2-甲酸)合铱配合物相比，设计的环金属铱配合物具有增强的MLCT电子跃迁吸收和低的氧化电位，是一种有发展潜力的红色磷光材料。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。