查询词典 H2O

A series of novel double helicates,{A[Mo2VIO4LnIII(H2O)6(C4H2O6)2]·4H2O}n (Ln = Sm, Eu, Gd, Ho, Yb, Y; C4H2O6 = L-tartaric acid; A = NH4 or H3O), have been synthesized from the reactions of chiral ligands L-tartaric acid with molybdates as well as lanthanide cations.

利用简单的手性有机配体L-酒石酸成功地合成出了一系列类似DNA螺旋构型的左、右旋的一维链状聚合物：{A[Mo2VIO4LnIII(H2O)6(C4H2O6)2]·4H2O}n (Ln = Sm， Eu， Gd， Ho， Yb， Y； C4H2O6 = L-或 D-酒石酸； A = NH4 或 H3O)。

H2O Water Chi O's star product is "eight glasses of water facial cream," Brand positioning is fresh health, water moisture to the skin.

H2O水芝澳的明星产品是&八杯水面霜&，品牌定位是清新健康，为肌肤补水保湿。

The analysis of decomposition mechanisms of the catalyst surface revealed that one of the mechanisms is that activated gas phase O2 captures the hydrogen of the organic pollutants to produce free radicals, which then initiate the catalytic reaction, and produce CO2 and H2O ultimately; and the other mechanism is that the activated organic compounds attack the crystal lattice oxygen, which reduces the valances of the transition metals, then the oxidant of the oxygen oxidizes the transition metals to high valances, which realize the self oxidation-reduction of the catalyst.

催化剂表面有机物降解的机理分析表明，一种反应机理为气相中的O2活化后直接夺取有机污染物的氢，产生自由基，并引发催化反应，最终生成CO2和H2O；另一种反应机理为活化后的有机物直接进攻催化剂的晶格氧，并且使得过渡金属由高价态变为低价态，反应气中的O2再将低价态的金属氧化为高价态，实现催化剂自身的氧化还原循环。

In a thirsty world filled with hydrogen and oxygen," Mr Derman has written,"someone had finally worked out how to synthesise H2O.

德尔曼写道：&在一个充满了氢与氧的干渴世界，终于有人发现了合成水分子（H2O）的方法。&

In order to study the influence of preparation techniques on stability of different morphological silver colloid s, stable silver colloid s were produced by the reduction of AgNO3 with the protection of polyvinylpyrroli-done using KBH4 and N2H4 ----------- H2O as reductants.

为了研究制备工艺条件对不同形貌银胶体稳定性的影响，在超声场作用下，以AgNO3为前驱物，聚乙烯吡咯烷酮为保护剂，KBH4和N2H4·H2O分别为还原剂，制备了稳定的银胶体，并利用透射电镜和分光光度技术对制备的银胶体进行了表征。

Gold Scorpionates Capture Ethylene ― Transition metal-ethylene complexes, known for nearly 200 years, were first made famous by Zeise's salt, K[PtCl3(C2H4)] H2O, a once-mysterious complex in which an ethylene molecule binds side-on to the platinum atom.

金蝎合物俘获乙烯――人们早在1827就制备了过渡金属烯烃复合物，最近因蔡斯盐，K[PtCl3(C2H4)] H2O，一种烯烃分子缠绕铂原子曾经很神奇的复合物，而首次名满天下。

Saturation properties for H2O; output saturation pressure.

H2O之饱和性质；输出值为饱和压力。

The results show that in the ternary system of Mn2+-NH＋4-SO2-4-H2O, there exist three saturated curves, two co-saturated points and three purity salt crystal areas.

结果表明：在三元体系Mn2+-NH＋4-SO2-4-H2O相图中存在3条饱和曲线、 2个共饱和点及3个纯盐结晶区。

In this paper, in terms of diffusion equation of neutral gas in thermosphere and main ion-chemistry reactions in ionospheric F region, the diffusion processes of H2, H2O and CO2 and ionospheric response to released gases are investigated.

根据中性气体在热层背景中的扩散方程，考虑电离层F区主要的离子化学反应，研究了H2，H2O和CO2气体在电离层高度上的扩散过程和电离层对所释放气体的响应，计算了气辉的体发射系数和发射强度。

Density functional theory calculations were performed to study the structures and relative stability of the gadolinium complexes, Gd(H2O)n3+(n=8,9), in vacuo and in aqueous solution. The polarizable continuum model with various radii for the solute cavity was used to study the relative stability in aqueous solution.

用密度泛函理论方法研究了气相和水溶液中Gd(H2O)n3+(n=8，9)化合物的结构和相对稳定性，其中水溶剂效应利用极化连续介质方法结合多种溶质空腔模型进行模拟。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。