查询词典 hydrogen ion

For the fourth part, we first designed a hydrogen bonding-mediated rigidified polymer. The X-ray crystal analysis of its fragment molecules showed the existence of consecutive intramolecular hydrogen bonds, which forced the backbone to adopt a rigidified planar conformation.

在第四部分工作中，首先我们设计了一种分子内氢键控制构象的聚合物，通过对其氢键骨架的单晶培养和结构解析证实在它们的结构中存在三中心氢键使得它们采取平面刚性的构象。

Reforming unit: recycle hydrogen compressor, reforming hydrogen compressor, feedstock furnace, reboiling furnace of deheptane tower

重整单元：循环氢压缩机、重整氢增压机、重整进料加热炉、脱戊烷塔重沸炉

Effects of hydrogen reduction time, hydrogen content and redox circulation on C O oxidation activities of CuO-CoO/Al2O3 and CuO-Ce2O3/Al2O 3 combustion promotors were investigated.

对 CuO-CoO/Al2O3和 CuO-Ce2O3/Al2O3助燃剂受 H2还原时间、还原 H2 含量，以及多次还原-氧化循环处理后对 CO 氧化活性的影响在实验室进行了研究。

Methods: Copper was determined by catalytic kinetic spectrophotometric method which was based on the copper catalyzing oxidation of brilliant green by potassium chlorate and hydrogen peroxide in potassium hydrogen phthalate-sodium hydrate buffer solution at pH4.20. The absorbance was measured at 624 nm.

在pH4.2的邻苯二甲酸氢钾－氢氧化钠缓冲溶液介质中，利用铜离子催化氯酸钾和过氧化氢氧化灿烂绿的指示反应，通过测量624 nm下吸光度的改变，用催化动力学光度法测定痕量铜。

According to specific character of research object, via much study work, analyzing many cases of non-heat pressure vessel invalid and combining test result in electric power industry .It analyse and summarize the main reason of hydrogen pressure vessel of electric power plant.This essay carry out crazing performance test of hydrogen causing material .

根据研究对象的具体特点，通过大量的调研工作，分析了大量有关非热力压力容器失效的案例，结合电力行业内已有的检验结果，对电站氢气压力容器失效的主要原因进行了分析和总结；进行了氢致材料开裂性能实验。

According to hydrogen pressure vessel and non-heat pressure vessel of power supply corporation in chongqing electric net as research object , applying exoterica analyse and physical chemistry test to hydrogen pressure vessel and non-heat pressure vessel and carrying through the safety performance evaluation and analyse and research of test .

以重庆电网内发供电企业内装置的氢气压力容器及非热力压力容器为研究对象，应用理论分析和物理化学试验相结合的方法，对氢气压力容器及非热力压力容器进行安全性能评估和检验的分析和研究。

Therefore, from both the economic and environmental viewpoints, there is a definite need for catalytic oxidations employing hydrogen peroxide as the stoichiometric oxidant for hydrogen peroxide is environmentally friendly, cheap a...

因此，从经济和环境的双重角度来考虑，以环境友好，价格低廉的过氧化氢为氧源，采用催化氧化反应替代传统有机氧化过程是化工生产的发展趋势。

Therefore, from both the economic and environmental viewpoints, there is a definite need for catalytic oxidations employing hydrogen peroxide as the stoichiometric oxidant for hydrogen peroxide is environmentally friendly, cheap and rea...

因此，从经济和环境的双重角度来考虑，以环境友好，价格低廉的过氧化氢为氧源，采用催化氧化反应替代传统有机氧化过程是化工生产的发展趋势。

Thepressurized and well-mixed hydrogen/air mixture is rapidly ignitedthrough the spark because hydrogen has a fast flame front.

加压，并充分混合的氢/空气混合物是通过迅速点燃星火，因为氢有一个快速火焰面。

Every living organism consisted of hydrogen in its constituents. Petroleum, natural gas and town gas also composed of hydrogen.

一切生物的细胞组织成份里都含有氢，石油、天然气和煤里也含有氢。

You can snipe the second and third union leaders from this position.

您可以鹬第二和第三工会领袖从这一立场出发。

Aiming at the currently shortage of XML streams quality detecting, this paper proposes a new forecasting method of XML streams quality by least squares support vector machines, which is used the method of XML keys' vector matrix as windows, and vector product wavelet transform to multilevel decompose and refactor the XML streams series, that can fulfill real-time checking demand of XML quality, and ensure constraint, consist- ency and integrality. For even more adapting net load, it proposes a control strategy by weight and adaptive adjustment to ensure XML streams quality.

针对当前XML数据流质量检测存在的不足，提出构建XML键的矢量矩阵作为窗口，利用矢量积小波变换多级分解与重构XML数据流，再结合最小二乘支持向量机对XML数据流质量进行预测的一种方法，满足XML数据流质量重构时实时检测的要求，保证XML数据的约束性、一致性与完整性；为了更好的适应网络负载，采取加权与自适应窗口调整等调度策略充分保证XML数据流的质量检测。