氢

From the calculations, it can be found that the van der Waals interactions, the hydrophobic interactions, as well as the H-bonding interactions are crucial for the ligand binding. The 4-phenylamino group can produce strong van der Waals adn hydrophobic interactions with the nonpolar side chains of the residues deep in the binding cleft. The R^1 and R^2 substituents on the bicyclic chromophore can also produce strong van der Waals and hydrophobic interactions with the residues located at the exterior part of the binding pocket. Moreover, the two N atoms of the quinazoline can form H-bonds with EGFR, which will produce significant contribution to biological activities. The calculated nonbonded interactions between anilinoquinazolines and EGFR, as well as the information obtained from the predicted complexes, can interpret the structure-activities of the inhibitors well, which can afford us important information for structure-based drug design.

从模拟结果得到的抑制剂和靶酶之间的相互作用模式表明范德华相互作用、疏水相互作用以及氢键相互作用对抑制剂的活性都有重要的影响，抑制剂的苯胺部分位于活性口袋的底部，能够与受体残基的非极性侧链产生很强的范德华和疏水相互作用，抑制剂双环上的取代基团也能和活性口袋外部的部分残基形成一定的范德华和疏水性相互作用，而抑制剂喹唑啉环上的氮原子能和周围的残基形成较强的氢键相互作用，对抑制剂的活性有较大的影响，计算得到抑制剂和靶酶之间的非键相互作用能以及抑制剂和靶酶之间的相互作用信息能够很好地解释抑制剂活性和结构的关系，为全新抑制剂的设计提供了重要的结构信息。

The differences of these catalysts reactivity were related to their structures and the activity of lattice oxygen.

这一方面是因为氢的引入使表面的氧物种发生了变化，形成了活性更高的氧物种，另一方面是因为氢的引入加速了氧分子向晶格氧转化。

The H2-side seal oil returns to the H2-side of the seal ring in the generator and prevents absorbed H2 in the oil from escaping to the outside atmosphere.

氢侧的密封油返回到发电机密封环的氢侧，并防止将油中易吸收的氢气逸入外部大气中。

Abstraction of a secondary hydrogen leads to the secondary product.

一个伯氢被取代可得到相应产物。有两个仲氢。

Accordingly, the accident of sulfide stress corrosion cracking should be taken into account.The SSCC sensitivity and cracking time of 16Mn steel used to make the cold-high pressure segregator and common 16Mn steel in solutions with various H2S contents and pH values, simulated solution and operating solution were investigated by constant strain bend and slow strain rate test.Hydrogen diffusion coefficients of 16Mn steel, 16Mn steel and their welded seams were also tested by the electrolyte hydrogen charged method.Safety evaluation of the cold-high pressure segregator was given with above results.

针对制造过程中由于开孔失误而进行补焊的冷高压分离器在高压、高浓度的H2S环境的使用安全问题，采用了电化学充氢、恒应变和慢拉伸的实验方法，研究了制造冷高压分离器的主体材料16Mn钢和普通的16Mn钢及其焊缝的氢扩散系数，在不同H2S浓度、pH值，模拟冷高压分离器操作环境溶液和实际溶液中的腐蚀规律和硫化氢应力腐蚀开裂敏感性，结合实际腐蚀环境的检测和分析结果，对补焊后的冷高压分离器的使用安全给出了综合评估。

The solubility～temperture curve of rubidium hydrogen selenate in aqueous was measured,and the bulk crystal of rubidium hydrogen selenate was grown by solution temperature reduction method after some unfavorable factors such as floating crystals and climbing crystals et al.

本文测定了硒酸氢铷在水中的溶解度～温度曲线，并采用溶液降温法，克服了RHSe晶体生长时易漂晶、爬晶等不利因素，生长出大尺寸硒酸氢铷单晶。

With the increase of pressure, the hydrogen bond strength between water molecules increases, while self-diffusion coefficient decreases. With the increase of temperature, the hydrogen bond strength between water molecules decreases, while self-diffusion coefficient increases.

模拟结果表明，随着压强的增大，水分子间的氢键作用增强，扩散系数减小；随着温度的升高，水分子间的氢键作用减弱，有序程度下降，扩散系数增大。

He hardness of Ti600 alloy increases with increasing of hydrogen, and it is considered that hydride, silicide and lattice defects are the major factors.

i600合金的硬度随着氢含量的提高而提高，其主要原因是氢化物、硅化物粒子以及晶格缺陷的存在。

The mineralization of gold and silver is zoned and closely related to silicification of carbonate and clastic rocks, so siliceous ore dominates in the deposit.

矿化温度主要在300～170 C之间，成矿流体的主要成分为K~-、Na~-、Ca~(2+)、Mg~(2+)、Cl~。金属配合物的分配计算显示，金在成矿热液中主要以疏氢配合物迁移，而银、铁、铅、锌则以氯配合物为主，铁、铅、锌在成矿后期的中性-弱碱性环境下可转变为羟基和硫氢配合物。

Second, and slightly more speculatively, it appears that cars.

其次，当然这更明显的是一个猜想，即汽车、卡车和公交车在不远的将来不再由内燃发动机而是使用一种由能浓缩氢的动力电池所驱动，这些浓缩氢起初会来自汽油。

They weren't aggressive, but I yelled and threw a rock in their direction to get them off the trail and away from me, just in case.

他们没有侵略性，但我大喊，并在他们的方向扔石头让他们过的线索，远离我，以防万一。

In slot 2 in your bag put wrapping paper, quantity does not matter in this case.

在你的书包里槽2把包装纸、数量无关紧要。