查询词典 a

The present invention relates to a coating composition comprising; A at least one polyester oligomer prepared from reactants comprising a 20 60 wt.% of at least one polyol, b 5 30 wt.% of at least one polycarboxylic acid selected from the group of cyclic polycarboxylic acids, the esters or the anhydrides thereof, wherein the carboxyl groups are separated by 3 carbon atoms or less, and from the group of alpha , beta -saturated acyclic polycarboxylic acids, the esters or the anhydrides thereof, and c 20 60 wt % of at least one monocarboxylic acid, the sum of the wt.% indicated for the reactants,, and always being 100 wt.%, and the oligomer being a low-viscosity oligomer having a weight average molecular weight Mw of less than 5,000, and a hydroxyl number in the range of about 200 to about 400 mg KOH/g oligomer, and B at least one polyisocyanate.

本发明涉及一种包含如下组分的涂料组合物：A至少一种由包含如下成分的反应物制备的聚酯低聚物：a20-60wt％至少一种多元醇，b5-30wt％至少一种选自其中羧基被3个或更少碳原子隔开的环状多元羧酸、其酯或酸酐以及选自α，β-饱和的无环多元羧酸、其酯或酸酐的多元羧酸，以及c20-60wt％至少一种一元羧酸，其中反应物、和的wt％之和总是为100wt％，所述低聚物是重均分子量Mw低于5000且羟基值为约200-约400mg KOH/g低聚物的低粘度低聚物，以及B至少一种多异氰酸酯。

Derivatives also create a daisy-chain risk that is akin to the risk run by insurers or reinsurers that lay off much of their business with others. In both cases, huge receivables from many counterparties tend to build up over time.(At Gen Re Securities, we still have $6.5 billion of receivables, though we've been in a liquidation mode for nearly a year.) A participant may see himself as prudent, believing his large credit exposures to be diversified and therefore not dangerous. Under certain circumstances, though, an exogenous event that causes the receivable from Company A to go bad will also affect those from Companies B through Z. History teaches us that a crisis often causes problems to correlate in a manner undreamed of in more tranquil times.

衍生性金融商品交易也有可能造成骨牌效应的风险，这是因为许多保险业及再保业者习惯将风险分散给其它保险公司，在这类的情况下，钜额的应收款项将随着交易对象的日趋复杂而持续累积，(以通用再保证券来说，虽然已经经过将近一年的清算期，目前仍有高达65亿美元的应收款项流通在外)，交易的一方或许对于自己相当有信心，认为其钜额的信用风险已经经过适度的分散，因此不会发生任何危险，只有等到某种特殊状况下，一个外部事件导致 A 公司的应收帐款发生问题，从而影响 B 公司，乃至于一路到 Z 公司，历史教训告诉我们危机的发生往往是我们在太平盛世时所梦想不到一连串问题串连所导致的。

We show a matrix A is similar to an orthogonal matrix over a field of characteristic 2 if and only if ( 1 ) the invariant factors of A are symmetic,(2) A has at least an elementary divisor of the form ( x + 1 ) m.

本文利用矩阵方程证明如下两个结果：设F为一个域char=2，在F上矩阵A相似于一个正交矩阵的充要条件为(1)A的不变因子是对称的。(2)A至少有一个形为(X十1)的初等因子。

Hepatitis A vaccination: Indicated for persons with chronic liver disease, those who receive clotting factor concentrates, men who have sex with men, illegal drug users, laboratory workers exposed to hepatitis A virus–infected primates, persons traveling to or working in countries with high or intermediate endemicity of hepatitis A, and those seeking protection from hepatitis A virus infection.

A型肝炎疫苗：适用于慢性肝病患者、接受凝血因子浓缩剂者、男男性行为者、非法药物滥用者、实验室中曝露于A型肝炎病毒感染灵长类样本之工作者、前往A型肝炎高度或中度流行之国家旅行或工作者、寻求免于A型肝炎病毒感染者。

Global resin series: Then, infusion of A, B plastic, acrylic Green Red A, B plastic Series: Full transparency A, B series, with globoid plastic infusion series, latex import puzzle series and decorative Wan Nengjiao series, Poly White latex series of vinyl acetate, glass gems, crystal stone, stainless steel dedicated groups of plastic, POLY resin, silicone molds and a variety of industrial plastic.

环球树脂系列：接着、灌注型A、B胶，压克力青红A、B胶系列：全透明A、B系列，灌注用弧面胶系列，进口拼板乳胶系列和装饰万能胶系列，聚醋酸乙烯白乳胶系列，玻璃宝石、水晶石、不锈钢专用无影胶，POLY树脂、模具硅胶及各种工业有胶。

I don't know by whom you are employed,i only know that i recieved several letters for A and B.since you are working for Mr. hanley,i sincerely tell you that if you lose both A and B,there will be reasons for Mrhanleyto regret:you would have to buy it at a much higher price if it were bought by another ivesgating company;it would mean a great trouble if the fans got it;it would be a greater touble it you rivals got it.so i don't want you to lose this,and if you bought this, there would be great benefits:eg.if you cultivate the market in china, there will be many opportunities for you ,because this kind of companies are too few in china, your stock will be hot.

生活小百科网：『我也不知道你受雇于谁，我只知道我这来了几封购买A和B的信件，既然你受雇于hanley先生，我诚恳的告诉你失掉A和B，有几种原因会让hanley先生后悔的，如果让投资公司购买到你以后得花更高的代价，如果让此歌迷得到以后购买也许会很麻烦的，如果你让竞争对手得到的话你就会很糟糕的，我也不想你失去此A和B，如果你购买的话会产生很好的效果，如宣布开阔中国的市场，你就会带来更多的机运，因为中国这方面的公司实在太少了，你的股票也会大涨。

In one embodiment, the invention is a system for initiating free radical polymerization comprising: a in one part, one or more amido-borate compounds containing one or more anionic amido-borate moieties comprising an organoborate wherein the boron atom is bonded to a nitrogen atom of ammonia or an organic compound containing one or more nitrogen atoms, such as a hydrocarbyl amine, a hydrocarbyl polyamine, or an aromatic heterocycle containing one or more nitrogen atoms and optionally containing one or more heteroatoms or heteroatom containing functional moieties, and one or more cationic counter ions and b in a second part, a liberating compound which reacts with the nitrogen atom bound to the boron atom upon contact with the amido-borate to form an organoborane radical.

在一个实施方案中，本发明是引发自由基聚合的体系，包括：a在一个部分中，一种或多种含有一个或多个包含有机硼酸根的阴离子酰氨基-硼酸盐部分和一个或多个阳离子抗衡离子的酰氨基-硼酸盐化合物，其中的硼原子键合到氨的氮原子或含一个或多个氮原子的有机化合物，例如烃基胺、烃基聚胺或含一个或多个氮原子和任选含一个或多个杂原子或含杂原子的官能部分的芳族杂环的氮原子上，和b在第二部分中，在与酰氨基-硼酸盐接触时与键合到硼原子上的氮原子反应形成有机硼烷基团的释放化合物。

A pair of primers that contained flanking hydropathic amino acid codons were synthesized, to amply the sequence coding for 10~34 aa in the precursor sequence. The amplified fragment was inserted into pRSET-A to generate the first double repeat of the precursor gene. By utilizing a pair of isocaudamer BamH I and Bgl II sites, and another downstream Hind III site of plasmid pRSET-A, following a series of simple double digestions and ligation of the resulted products, a series of repeat (3, 4 and 6) precursor peptide fragment genes were derived.

本实验设计一对两侧含编码疏水性氨基酸密码子的引物，经过扩增前导序列10~34aa基因序列，并重新克隆入质粒pRSET-A构建串联二聚体后，再利用质粒pRSET-A的BamH I / Bgl II同尾酶克隆位点，经一系列简单的酶切和连接，快速构建这一前导肽中不含组氨酸标签序列的串联多聚体基因，并成功表达其六聚体重组蛋白。

The anatomical variation of uteruses in each group was observed, we found that the uteruses in group A had a pink color, and the shape of them seemed like a string of beads, congestions didn't existed in this group; the other four groups were all aborted to different extents, the color of uteruses in group B, D, E were purple black, embryos were small than the ones in group A, or the uteruses had a bamboo-shaped figuration, all embryos were aborted, uterine cavity had congestions, vagina also had bleeding situation; the color of uteruses in group C was incarnadine, some of the embryos had been eliminated, vagina had a slight extent bleeding.

观察各组妊娠大鼠子宫颜色及出血情况， A组胎粉红，呈串珠状，宫内未见瘀血； B、C、D、E组均出现不同程度的流产状，B、D、E组胚胎紫黑，较A组变小，或子宫呈竹节状，胚胎消失，宫腔瘀血，阴道出血；C组胚胎深红，部分胚胎消失，阴道少量出血，C组妊娠结果优于B、D、E组。2。

The single a machine that should design to adopt serieses MCS-51s primarily conduct and actions main a measurement for, passing spreading feeling machine to the current of air measuring, its change is homologous pulse signal, this pulse signal through A/ D conversion with D/ A conversion after produce the certain electric voltage signal, will show the inceptive pulse signal a discharge for representing to come out at the same time.

该设计主要采用了MCS-51系列的单片机作为主要的芯片，通过传感器对燃气流量的测定，将其转变为相应的脉冲信号，这个脉冲信号经过A/D转换和D/A转化之后产生一定的电压信号，同时会将起初的脉冲信号所代表的流量显示出来。

If you are unfortunate enough to the lovelorn, please tell me, I will help you out, really, please contact me!

如果你不幸失恋了，请告诉我，我会帮助你摆脱困境，真的，请联系我啦！

China's plan to cut energy intensity by 20 percent and pollutant discharges by 10 percent between 2006 and 2010 is a case in point.

中国计划在2006年到2010间降低20%的能源强度和减少10%的主要污染物排放，就是一个这样的例子。