三价的

The fluorescence properties of complexes of europium with β-diketone and terbium with benzoic acid and its derivatives were analyzed and the synergic effect of the second ligand was illustrated from the energy matching of the minimum triplet state of ligands and the resonance energy level of rare earth ions.

提出了掺杂离子荧光增强效应的机理。 4。首次采用ab initio CIS方法，在劈裂价层基组3—21G水平上对各配体进行了量化计算，系统分析了前线分子轨道特征和激发态的能级，从配体最低激发三重态能级与稀土离子共振能级的能级匹配，分析了铕与β-二酮的配合物的荧光性能和铽与苯甲酸系列衍生物的配合物的荧光性能，解释了第二配体的协同效应。

We agent more than 1,000 of civil airlines' air ticket,also do the air ticket of international airline agency,welcome to compare with the other's price of international air ticket,we just do the really helping our guest saving money,for decreasing the much surplus exaggeration.

本站除了代理国内1000多条航线的电子客票销售以外，还代理国际航线的机票，国际航班的价格欢迎大家价比三家，我们只会真正意义上帮助客人省钱，为客人省去中间的许多水分。

Years 9 on 9, China National Petroleum Group to Australia's largest oil and gas producer Woodside Petroleum to buy up to 45 billion Australian dollars worth of liquefied natural gas, the Bank of China the same day the conversion price, 1 Australian dollar to 6.2430 yuan to calculate, when the China National Petroleum Corporation's property for 280.935 billion yuan.

二千零七年9月9日，中国石油天然气集团对澳大利亚最大的石油和天然气生产商伍德赛德石油公司购买最多45亿美元的液化天然气，中国银行的同一天，澳元兑换价， 1澳元六点二四三零元计算，当中国石油天然气集团公司的财产为2809.35亿元。

The three tetranuclear copper complexes are structurally analogous and they all consist of a pair of [Cu22]+ or [Cu22]+ fragments bridged by a deprotonated dicarboxylate into dumbbell-shaped, neutral, tetranuclear molecules.

三个四核混合价铜化合物具有相似的分子结构，它们由一对[Cu22]+或 [Cu22]+碎片和一个架桥的二羧酸配体组成中性的四核的哑铃型结构。

Nodosus pilin and the killed D. nodosus vaccines. It also means that the IL-2 in the fused Pilin-IL2 construct may also have a potential role in stimulating vaccine antigen .Key words: D. nodosus Recombinant Pilin gene Recombinant Ovine IL-2 gene Fused Pilin-IL2 gene

用Pilin-IL-2融合基因工程疫苗免疫健康家兔的初步免疫试验结果表明，2l天后产生较高的凝集效价，达到〓，甚至稍高于加佐剂的前三种疫苗，证明绵羊IL-2基因与Pilin基因融合后，可起到一定的免疫佐剂作用。

CITIC Securities report further pointed out that the companies within the next three years of seasonal influenza vaccine will be 2.5 billion in sales revenue, tetravalent meningitis vaccine revenues will reach 2 billion yuan, hepatitis B vaccine revenue at 1.2 billion yuan, will become the company's vaccines business The main driver of growth is forecast to the company in 2009 -2011 years of EPS were 0.87 yuan, 1.06 yuan and 1.41 yuan, to maintain the company "overweight" rating, target price of 44.55 yuan.

中信证券报告进一步指出，未来三年内公司季节性流感疫苗将达到2.5亿元的销售收入，四价流脑疫苗收入将达到2亿元，乙肝疫苗收入将达到1.2亿元，疫苗业务将成为公司高速增长的主要驱动力，预测公司2009年-2011年的EPS分别为0.87元、1.06元和1.41元，维持公司&增持&的评级，目标价为44.55元。

The results show: the new schedule was simple, easy-running, and the Quality of cured tobacco was improved: rates of orange tobacco, the first class tobacco higher than check by 3.38, 4.74percentage, average price is 01.53 yuan/kg higher. Meanwhile, total sugar, starch, nicotine, total nitrogen, protein and the difference between total sugar and reduce sugar is lower, and chemical composition is more balance than check.

结果表明：设置的烘烤工艺阶段简单，操作方便，烟叶烘烤后，比三阶段烘烤工艺烘烤的烟叶桔黄烟比例、上等烟比例、上中等烟比例分别增3.38、4.74、2.03个百分点，鲜干比增高0.03，均价提高0.53元/kg；总糖、淀粉、总氮、烟碱、烟碱氮、蛋白质的含量及总糖与还原糖的差值有所降低，烟叶化学成分更为协调。

Philippe Ségalot, an art advisor, Jose Mugrabi, a dealer who owns some 800 Warhols, Abdallah Chatila, a Lebanese collector, and two other Sotheby's staff members, Loic Gouzer and Bruno Vinciguerra, together nodded and waved the lot all the way up to its $39m hammer price.

一位艺术顾问--Philippe Ségalot，一位拥有大约800幅沃霍尔作品的承销商--Jose Mugrabi，一位来自黎巴嫩的收藏家--Abdallah Chatila，以及索斯比拍卖行的两位工作人员--Loic Gouzer和Bruno Vinciguerra，或频频举牌，或点头示意，将价格抬升至三千九百万美元的原定落锤价。

In the medium without copper and iron, onlywith ferric citrate , the expression of FDR3 could complement the growth defect of ctrl mutant .CTR1 is a member of high梐ffinity iron transport system .

酵母突变体中铁高亲和系统的成员Ctrl缺失突变，培养基中不供给二价铁和铜，仅以柠檬酸三铁作为唯一的铁源，FDR3基因的表达能够恢复Ctrl突变体在该选择培养基中的表型生长。

Melting point 3410 ℃, boiling point 560 ℃, relative density of 1935, F the external electronic structure of 5d46s2, in the chemical reaction time is very easy to lose 1-6 electronic, but also can get 1-2 electronic, so oxidation number of 0,± 1,± 2, 3, 4 , 5 and 6, with 6 price of the most stable compounds, such as WO3 does not dissolve in water, the air will form in the tungsten trioxide thin protective layer of tungsten, tungsten with fluorine at room temperature, chemical combination, red hot when there is no moisture and Bromine iodide together, red hot when you can and water reaction WO3, at room temperature reaction of tungsten with aqua regia, but the hot concentrated hydrochloric acid and sulfuric acid can only be played with its weak response, but molten nitrate, nitrite, too Hydrogen peroxide, sulfur steam, steam and other phosphorus can play intense reaction, high temperature can not be carbon, boron and silicon reaction of binary compounds, widely used in industrial tungsten steel and tungsten carbide, pure tungsten filament is used to the system, and X-ray tube Tube heating components, semiconductor components can be prepared tungsten silicide, tungsten industrial production is white or black tungsten ore tungsten ore refining.

熔点3410℃，沸点560℃，相对密度1935，F外围电子结构为5d46s2，在化学反应时很容易丢掉1—6个电子，也能得到1—2个电子，所以氧化数为0、±1、±2、＋3、＋4、＋5和＋6，以＋6价化合物最稳定，如WO3不溶于水，空气中的钨会形成薄层三氧化钨保护层，钨能与氟在室温下化合，红热并无潮气时能与溴、碘化合，红热时还能和水反应生成WO3，室温下钨可与王水反应，但热的浓盐酸和硫酸只能与其起微弱反应，但对熔融的硝酸盐、亚硝酸盐、过氧化氢、硫蒸汽、磷蒸汽等能起激烈反应，高温下不能与碳、硼和硅反应生成二元化合物，工业上广泛使用钨钢和碳化钨，纯钨用来制灯丝、电子管和X射线管的发热元件，硅化钨可制半导体元件，钨工业生产是将白钨矿石或黑钨矿石精炼。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。