查询词典 D.O.A.

Based on the effects of atomic radius on the Curie temperature, new bismuth layer-structured piezoelectric ceramics Ca〓〓Bi〓Ti〓O〓 with high Curie temperatures and piezoelectric activities were obtained by A-site substitution for Ca.

本论文从取代原子半径对居里温度的影响入手，利用碱金属原子Li，Na，K和Ce原子复合取代层数m=4的铋层状铁电体CaBi〓Ti〓O〓中位于A位的Ca原子，在保持材料高居里温度的前提下获得了压电系数d〓明显改善的铋层状结构压电陶瓷。

He was a D o c t o r of Philosophy in economics of Yale.

他是耶鲁大学经济学博士。

C ', J5 D; y$ O; V1 D- c8 J A touring group of retired government employees learns about the brash new sights of Dalian, a city on the rise in China's Northeast.

'9 U* J1 _， J1 j9 D% K 一个退休干部旅行团正在听导游介绍中国东北窜升中的城市——大连急速发展的新市景。

Then the protected D-mannitol, mixed with lead tetraacetate, hippuric and acetic anhydride, were refluxed in THF for 18 h in a one-pot two step reaction to afford a chiral precursor-2-phenyl-4-[-2,3-O-]-propylidene-5(4H)-oxazolones.

产物与四乙酸铅、马尿酸、乙酐于THF中回流18 h完成一釜二步反应，纯化后得到含有手性碳原子的环丙烷氨基酸前体-2 苯基-4-[-2，3-O-]丙叉？

0 D; X8 K富阳论坛 Prof Bonthron, Dr Chris Bennett of the Yorkshire Regional Genetics Service and their colleagues studied a group of patients suffering from inherited primary hypertrophic osteoarthropathy, a genetic disorder in which the finger clubbing is accompanied by painful joint enlargement and a thickening of the bone.

Bonthron教授以及约克郡基因所得Chris Bennett博士和他们的同事们研究了一组罹患原发性肥大性骨关节病的病人，这种病是一种发生杵状指并伴随着进行性股关节痛及骨肥厚的遗传病。3 p1 _6 c O k* d： b+ z1 e富阳论坛，富阳新闻，富阳民声，富阳交友，富阳旅游，富阳美食，富阳房产，富阳商贸 B！ j。 A！ S4 z$ X， c5

Methods:Dehydration of D-mannitol,followed by a reaction sequence of selective protection,benzylation,deprotection,tritylation,benzylation and removal of the trityl group,afforded the title compound.

以D-甘露醇为原料构建2，5-脱水-3，4，6-O-三苄基-D-葡萄糖醇的手性分子骨架，通过选择性地对多羟基的保护和脱保护达到对产物分离的目的。

The d octor a d vised me to d o more excercise.

医生建议我多做运动。

Oxendine , drove to the school to endorse the cheerleaders' cause, and a Tennessee newspaper cartoonist depicted them painting a sign that said " G o Big Red !"

标语的形象，而且还分别大写了G，O，和D字母。

GANNETT NEWSPAPERS 4 a+ v* S7 O/ D; O/ e1 m! m$ x; ^' b4 w NEW YORK -- Randy Johnson will have a plaque hanging in Cooperstown someday and Mike Mussina has been an ace all season.

Randy Johnson有一天会在Cooperstown的名人堂拥有属於他的纪念牌，而Mike Mussina整季的表现都足以成为第一号的王牌投手。

The Italian influence is likely, whatever Valdez immediate source: the Mexican carpas themselves are said to have originated from the theater pieces of a sixteenth-century Spanish writer inspired by encounters with Italian commedia dell'arte troupes on tour in Spain.7 $ O O K*|6 W3 T

意大利的影响是可能的，不管Valdez的直接来源是什么：墨西哥carpas戏剧据说本身就来源于16世纪西班牙作家的戏剧作品，而这些西班牙作家受到启发，是因为遇到了意大利c.d.a。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。