查询词典 H2O

We carry out the computation by using GaussianO3, and we get data of electric dipole moment of molecule H2O in all directions when it is put in strong electric field and the data of microcosmic polarizability tensor.

我们通过使用高斯软件，运用量子化学中从头计算的方法，较全面的研究了水分子的各种极化性质，得出了水的微观极化率张量等定量的结果。

The parameters in natural gas advanced reburning zone that influence the efficiency of de-NOx were studied in detail considering the injection amount of natural gas, initial concentration of NO, excess ratio of oxygen, the injection amount of ammonia, concentration of H2O, concentration of sodium in the experimental equipment.

建立实验装置，对先进再燃区中各种影响参数：天然气喷入量、一氧化氮初浓度、过量氧气系数、喷氨量、水蒸汽量、钠浓度等对脱硝效率的影响进行深入实验研究。

The other Cu were six coordinated H2O to form the octahedral geometry coordinated cation.

阴阳离子之间除了通过静电力相互作用外，还存在氢键作用。

The analysis results of crystal structure shows that the stoichiometric mononuclear Ni complex molecule C(subscript 37.5H45Cl2N10O12Ni was composed of two mononuclear Ni complex units {Ni[C35H33N10O](ClO4)2(CH3OH)2.5(H2O)0.5, Ni coordinated to the ligand to form hexacoordinated distorted octahedral configuration, and the orbital contribution and atomic net charge results has provided a good testimony for the coordinated condition in the crystal structure.

晶体结构分析表明，Ni单核配合物的化学经验式C37.5H45Cl2N10O12Ni的单胞中含有两个配合物分子{Ni[C35H33N10O](ClO4)2(CH3OH)2.5(H2O)0.5}，Ni与配位原子形成六配位的扭曲八面体结构。ab从头算所得原子轨道贡献和原子净电荷布居分析结果与晶体结构中的配位情况相符。

When smooth accelerant is shot by illumination, change smooth energy into electron and cavity above all, next with the oxygen in air (O2) and water element (H2O) reaction, the oxyhydrogen that generates a freeboard oxidation capacity is free base and oxygen anion (O2-).

光触媒被光照射时，把光的能量首先转化成电子和空穴，然后与空气中的氧气(O2)和水分子(H2O)反应，产生具超高氧化能力的氢氧自由基和氧负离子(O2-)。

In nine recruiters, the higher end-expiratory pressure strategy resulted in significant alveolar recruitment (587 ± 158 ml), improvement in arterial oxygen partial pressure/inspired oxygen fraction ratio (from 150 ± 36 to 396 ± 138), and reduction in static lung elastance (from 23 ± 3 to 20 ± 2 cm H2O/L).

结果显示，两组患者的临床转归相似。19例患者均使用了低PEEP (9 ± 2 cm H2O)和高PEEP(16 ± 1 cm H2O)通气。9例使用了高PEEP受试者肺泡复张显著(587 ± 158 ml)，动脉血氧分压/氧合指数改善(from 150 ± 36 to 396 ± 138)，静息肺弹性下降(from 23 ± 3 to 20 ± 2 cm H2O/L)。

With trimethyl,4-dodecylbenezyl ammonium chloride and 18-crown-6 as pase-transfer catalysts, the azidation of polyepichlorohydrin in poly and H2O were studied. The reaction discipline and mechanism were discussed. The results show that the system with trimethyl, 4-dodecylbenezyl ammonium chloride as phase transfer catalyst and PEG as medium is a safe and effective approach to glycidyl azide polymer preparation, and azidational ratio of PECH can reach 97% above within 15 h.

研究了氯化十二烷基苄基三甲基铵和18-冠－6为相转移催化剂时端羟基聚环氧氯丙烷在聚环氧乙烷和水为介质中的叠氮化反应，探讨了反应规律和反应机理，结果表明：以PECH为介质，十二烷基苄基三甲基氯化铵(TMDA-1)为相转移催化剂的反应体系，可在15h内使PECH叠氮化转化率达到97%以上，无主链断裂等副反应，是一条较为安全快速的制备叠氮粘合剂的方法。

During the preparation of AlOOH sol , Effects of peptizator, H2O/AL,hydrolysis time, hydrolysis temperature, aging time and composition were studied, it had been found that preparation period could be shortened by extending hydrolysis time. It was possibily because that , iso-propanol produced in the reaction could be volatilized when extending hydrolysis time, its harmful role to peptization process could be avoid in this condition.

在制备AlOOH溶胶过程中，系统研究了胶溶剂、H2O/AL、水解温度、水解时间、陈化温度和陈化时间的影响，并首次发现了延长水解时间可以显著缩短制膜周期，通过分析认为延长水解时间可以使反应过程中生成的异丙醇挥发出去，避免了其对胶溶过程的阻碍作用。

[Cu2(H2O)4]2 was prepared by the reaction of aqueous 1,2,4-triazol-5-one solution with the solution of copper picrate Cu2 and characterized by elemental analysis, FT IR and X-ray powder diffraction analysis.

本文通过1，2，4-三唑-5-酮水溶液与苦味酸铜水溶液反应，制备了[Cu2(H2O)4]2，用元素分析、傅立叶变换红外光谱分析、X-射线粉末衍射分析对其结构进行了表征。

Then, a standard pilot balloon was inflated with cuff pressure by 25 cm H2O, each participant was allowed to palpate the pilot balloon, until confident. After training, the same measurements were performed immediately, one week and one month later.

接著我们将气囊充气到压力值25 cm H2O，然后让每位受试者以手指头触感学习此时适当理想的气管内囊压力，直到他们觉得可以，接著以相同方式在学习完后立刻，一周后、一个月后来测量受试者对的气管内囊充气之压力。

Some questions asked by the adjudicators in one English Speaking Contest still run upon me very often.

我参加了一场以"我心中的奥运会"为主题的英语演讲竞赛，其间评判提的几个问题时时萦绕我的心头。

He called InTERActive our most profitable release of the year.

他呼吁互动的我们的最有利可图的释放一年。