碱金属

These results supply necessary data for the studies which need high-lying vibrational energies and dissociation energies of diatomic alkali-metal molecule.

这些结果为需要碱金属双原子分子精确振动能谱和离解能的科学研究提供了重要数据。

The algebraic method is used for the first time to study the vibrational spectroscopic constants and the vibrational spectra of three electronic states of alkali heteronuclear diatomic molecule: NaLi -、、 state. The dissociation energies of these states are studied using the algebraic energy method.

文章使用作者建立的基于微扰理论的代数方法，首次研究了碱金属异核双原子分子NaLi的、、三个电子态的振动光谱常数和振动能谱；使用基于AM的代数能量方法研究了这些电子态的离解能。

As a matter of fact, K promoter was used more frequently as a doper economically. 4. It was observed that K component appears to enhance the selectivity of C2+OH significantly with the lower catalytic activity simultaneously.

由于碱金属K对催化剂表面的电子修饰作用，K改性的CuZrO_2催化剂具有较高的高级醇选择性；同时，抑制副产物烃类的生成。

It was surprising when the alkali spectra showed unmistakable doublets.

当碱金属光谱显示出不容怀疑的双线结构时，是令人惊奇的。

It was surprise when the alkali spectra showed unmistakable doublets.

当碱金属光谱显示出不容怀疑的双线结构时，是令人惊奇的

According to related theories,the ultraviolet spectrum of atomic materials,especially the electron energy transition around alkali metal atomic nucleus is analyzed and calculated,and the spectral line data is listed in this paper.

根据相关理论，重点对原子紫外光谱，尤其是碱金属原子核外电子的能量跃迁进行了分析和计算，列出了计算的谱线数据。

Based on the characteristics of biomass fuel, this article summarizes the sources of alkali metals in biomass and the elutriation and migration.

在明确了生物质燃料特点的基础上，对生物质中碱金属元素的来源和析出迁移规律进行了概述。

In this study we use the oligomers of amino ethylene series as matrix and introduce dithiocarbamate group to adsorb merely heavy metal ions. Because of its special structural characteristics , dithiocarbamate can combine with a great number of heavy metal ions to produce insoluble complex compound except for alkali metals and alkaline earth metals.

本研究系将氨基乙烯系列之寡聚物(oligomers of amino ethylene series)当做基质引入只对重金属离子具有特殊螯合能力之荒酸盐，除了与碱金属及碱土族外荒酸盐与其他重金属离子都能形成不溶性错合物。

Said mineralizing agent is the fluoric alkali-earth metal salts or alkali metal salts (potassium fluoride or calcium fluoride).

其特征是在磷酸钙盐与碳酸钙盐以2∶1比混合物中，加入0.5～3wt％的含氟离子碱土金属或碱金属盐矿化剂，例如氟化钾、氟化钙等。

Francium is the densest of the Alkali Metals and also radioactive.

钫是碱金属中密度最大的，具有放射性。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。