查询词典 hydrogen chloride

Particularly in theβsubunit, the rotation of the distal HisE7 (63) imidazole ring about the Cα-Cγ bond and its large distance from the haem plane make a hydrogen bond possible between E7 Nε and the terminal binding oxygen atom, while in human oxyHb this hydrogen bond either does not exist or is only very weak.

这个氢键在人oxyHb分子中要么不存在要么很弱。

Not only the hydrogen atom of hydroxyl but also the hydrogen atom of the methyl group can transfer to the N atom of heterocycle.

不但甲醇分子羟基上的H可以作为供体质子，而且甲基上的H也可以作为供体质子而转移到芳香环的杂原子N上。

The effect of heterocycle in the molecules was similar to that of group -NH2, but the hydrogen on the nitrogen atoms could form the hydrogen bond between molecules which could effectively improve the thermal stability.

对于二维电荷转移体系，我们研究了氧桥Λ型分子，它含有两个D-π-A轴，属于典型的二维电荷转移体系，且它们的β_／β_＜1。

Hydrocyanic acid and water proceed via a five-centred transition states then transformed by its exterior hydrogen-bond; The results show that the activation energy of the isomerizing reaction in the aqueous phase is lower than that in the gas phase. It is likely that the hydrogen bonds formed in the complexes and the solvent effect play an important role.

计算结果表明，在水相中异构化过程的活化能比在气相中低，无论在气相还是在水相中异氢氰酸通过水氢键转化成氢氰酸容易些，而氢氰酸由水氢键转化成异氢氰酸相对要困难些，分子间氢键和溶剂化效应在异构化反应过程中起到重要的作用。

This combination of uranium and hydrogen is called a " hydrogen bomb ".

这种铀和氢的结合，叫做"氢弹"。

We successfully improved the methods of departing O-methyl using boron tribromide, of isolating hydrogen bromide byα-chloro-ethyl chloroformate, and of related in synthesis of natrexone, new medicine, using boron tribromide. This resulted in generation of hydrogen cyanide becoming impossible.

改进了以氯甲酸-α-氯乙酯脱代替溴化氰以及改进的三溴化硼法作为新药纳曲酮合成中相应的方法，去除了合成过程中产生氰化氢气体的可能性。

Including high-purity synthetic hydrobromide, hydrogen bromide acetic acid solution, hydrogen bromide acetone \ dichloromethane solution, sodium bromide, calcium, ammonium and other inorganic bromide, Bromochloromethane second bromomethane, 1 - bromo --3 - chloropropane organic bromide.

包括高纯度合成氢溴酸、溴化氢醋酸溶液、溴化氢丙酮\二氯甲烷溶液、溴化钠、钙、铵等无机溴化物，溴氯甲烷、二溴甲烷、1-溴-3-氯丙烷等有机溴化物。

Only hydrogen and carbon dioxide was tested in whole process and the content of bio-hydrogen is 55.4%.

所得生物气产物中没有检测到甲烷，氢气含量为55.4%。

For larger systems such as the hydrogen bonded complex between water and hydrogen fluoride, the additional question arises as to where to position the ghost orbitals.

对于较大体系如水和氟化氢形成的氢键络合物，会产生其他问题，如ghost轨道的位置在何处。

In the electrolytic exhaust gas of aluminium, the hydrogen fluoride is the main pollutant , so it is to judge one of the important standards up to standard of in electrolytic discharge of aluminum smelter to measure the content that the exhaust gas hits the hydrogen fluoride.

在铝电解烟气中，氟化氢是最主要的污染物，因此检测烟气中氟化氢的含量是判断电解铝厂排放是否达标的重要标准之一。

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。