查询词典 alkali

He dragged you through an Arkansas post-oak swamp, let you dry for a moment on the alkali plains of his Idaho ranch, then whirled you into the society of Viennese archdukes.

一转眼，他拖着你穿过阿肯色州长满星毛栎的沼泽，让你在艾达荷州他那碱性平原的牧场上炙烤一阵子，然后才旋风似地带你去维也纳大公们的上流社会。

Possible geometrical structures and relative stability of Alkali metal azides (CaN6)n (n=1～5) clusters are studied by using the hybrid density functional theory(B3LYP) with 6-311G* basis sets.

利用密度泛函理论在B3LYP/6-311G*水平上对碱金属叠氮化合物(CaN6)n(n=1～5)团簇各种可能构型进行了几何优化，预测了各团簇的最稳定结构。

Electron-Doping by Different Alkali Azides in Layer-Structured Crystals of β-MNCl M=Zr, Hf

篇名 不同碱金属叠氮化物对层状晶体β-MNCl电子掺杂的影响

The fluids in alkali basalts are composed mainly of oxidizing gases suc...

中国东部大陆的上地幔中可能存在P_(H_2)较高的区域。

Studies of beryls from Xuebaoding by means of crystal chemistry, optical analysis, EPR and infrared spectroscopy indicate that beryls have high alkali ions and water content.

本文对雪宝顶绿柱石的晶体化学、矿物谱学、热释光和流体包裹体特征等进行了分析讨论。结果表明，雪宝顶绿柱石化学成分具有富碱、富水，过渡金属离子以Fe3+、Fe2 +为主的特点。

From the point of view of molecular design, Al is a good candidate to introduce to the BO〓 groups to form a series of new alkali metal aluminum borates.

本论文从分子设计的角度，在BO〓基团中引入Al原子，获得了一系列新的碱金属铝硼酸盐化合物。

On the basis of the Frontier Orbital Theory and three Bonding Principles, the possibility of reaction of active HOSA^- carbanion on polymerization process of MA by alkali catalyst and the mechanism of anionic polymerization of maleic anhydride were studied.

应用前线轨道理论和成键三原则研究了碱催化条件下马来酸酐均聚过程中α-羟基丁二酸酐碳阴离子活性中间体参与反应的可能性及其阴离子聚合机理。

In the second part, quantum chemical AM1 methods were employedto theoretically investigate the electronic structures of maleic anhydride in ground- and excited-states. On basis of the frontier orbital theoryand three bonding principles, the possibility of reaction of active α-hydroxysuccinic anhydride carbanion and active α-hydroxy-succinic anhydride radical on polymerization process of MArespectively by alkali catalyst and by hydroxyl radical was discussed. Theanionic and radical polymerization of MA discussed also. Theoreticalstudies show that both polymerization products of MA are in the chainstructures, corresponding to the experimental findings.

第二部分用量子化学AM1方法，计算研究了马来酸酐的基态和激发态电子结构；应用前线轨道理论和成键三原则分别探讨了碱催化条件下和羟基自由基引发下马来酸酐均聚合过程中α-羟基丁二酸酐碳阴离子和α-羟基丁二酸酐碳自由基活性中间体参与反应的可能性及由它们引发的马来酸酐阴离子聚合反应机理和自由基引发聚合反应机理；理论研究表明马来酸酐的均聚合产物均为链式结构，与实验事实相相符。

Effect of sulphur alkali and mineral seeding on mineral formation of clinkers with varied conditions is discussed in the treatise.

研究了添加晶种与硫碱含量对熟料矿物形成的相互作用。

Developering concentration depends on the PS version of alkali resistance to confecting.

显影液的浓度给根据PS版的耐碱性来配制。

Objective: To study the effect of polycythemia on blood oxygen saturation.

裴蕾目的：观察RBC剧增而引起的高粘血症对血氧饱和度的影响。

Based on SIMPLER algorithm in the curvilinear body-fitted coordinates, the calculations were performed for Pr=0.7, Re=10~1000 on non-orthogonal non-staggered grids which are generated by elliptic equation systems.

采用曲线坐标系下压力与速度耦合的SIMPLER算法，数值研究了周期性渐扩渐缩波纹通道内脉动流动与换热情况，流动Re数的范围为10~1000，Pr数为0.7。