碱金属

Thought the investigation of liquid waste containing alkali metal salts handled in fluidized bed incinerator.

通过含碱金属钠盐废水在流化床中焚烧处理的实验研究，发现最常用和廉价的添加剂为石灰石。

In the method, the organic base is used instead of the hydroxide of an alkaline metal such as NaOH and KOH.

在方法中，用有机碱而不是碱金属的氢氧化物如NaOH和KOH。

Therefore, the content of an alkaline metal such as sodium and potassium that can be incorporated as an impurity into the metallic nickel powders can be significantly reduced.

因此，可以显著降低作为杂质引入金属镍粉中的碱金属如钠和钾的含量。

In the second chapter, twelve compounds constructed by arenedisulfonates and metal ions such as alkali, alkaline earth and transition metal ions have been synthesized and structurally characterized.

第二章描述了在水溶液条件下芳烃二磺酸根离子与碱金属离子、碱土金属离子和过渡金属离子形成的十二个化合物的结构。

The complexation properties of them with alkali and alkaline earth metal ions have been investigated by means of visible spectra in solns.

方法简便，产率较高，借助于可见光谱测定，考查了它们在溶液中与碱金属和碱士金属盐等的配位性能。

By means of static and dynamic experiments, lots of research on the effect of micro-quantity heavy metal ions removal by weakly basic anion exchange resins from drinking water with alkali metals, alkaline-earth metals and anions at high concentration, has been done.

本文采用静态和动态两种试验方法，对弱碱性阴离子交换树脂在碱金属、碱土金属离子以及阴离子相对较高浓度的背景下去除饮用水中微量重金属离子（以Hg2+为研究处理对象）的效果进行了大量试验研究。

In a word, WBAER can effectively remove micro-quantity HMI from DK with alkali metals, alkaline-earth metals and anions at high concentration.

最后得出结论：应用弱碱性阴离子交换树脂能在碱金属、碱土金属离子以及阴离子相对较高浓度的背景下有效地去除饮用水中的微量重金属离子。

The endohedral complexes formed by D5h C50 and H, alkali metals, and alkaline-earth metals, as well as charged states of the endohedral complexes, were theoretically investigated using B3LYP/6-31G method.

采用密度泛函理论B3LYP/6-31G方法，计算D5h C50富勒烯包合H原子，碱金属原子和碱土金属原子生成的内嵌衍生物及其阳离子。

Have put forwarda characteristic boundary contour model for an atom in a magnetic field has been established.

根据原子边界轮廓理论模型，研究和计算了在10~30T磁场强度下碱金属原子的边界轮廓，可供有关参考。

Co-firing characteristics of corn stalk and stone coal in different proportion were investigated by thermal gravimetric analysis. The results showed that corn stalk can improve the ignition and combustion of stone coal. The agglomeration experiments on corn stalk were made in a bench-scale bubbling fluidized bed with quartz sand as bed material and stone coal ash as additive. The results indicate that stone coal ash can inhibit agglomeration of bed material particles at temperature of 900℃. Agglomerate of blends was analyzed by means of scanning electron microscopy, energy-dispersive X-ray, and the bed materials were analyzed by means of X-ray fluorescence. Analysis showed that aluminum element and iron element in stone coal ash can react with alkali compounds and eutectics with low melting point, form a covering layer with high melting point on the surface of biomass and quart sand particles, thus inhibit the forming and transfer of low melting compounds.

以玉米秸秆与石煤按不同比例组成的混合物为研究对象，在TG-DTG热分析仪上进行了燃烧特性分析，结果表明玉米秸秆有利于石煤的着火和稳定燃烧，对石煤有一定的助燃作用；在小型鼓泡流化床实验装置上，以石英砂为床料、石煤灰为添加剂，进行了玉米秸秆成型燃料流化床燃烧的床料黏结实验，结果表明：石煤灰能够在生物质流态化燃烧过程中有效地抑制流化床床料黏结现象的发生；通过对实验中形成的结团进行扫描电子显微镜X射线能谱(scanning electron microscopy/Energy-dispersive X-ray- SEM/EDX)，对床料进行X射线荧光光谱(X-ray fluorescence，XRF)分析，结果表明石煤灰中的Al和Fe能够与生物质灰中的碱金属化合物以及低熔点共熔物发生化学反应生成高熔点物质，并且覆盖在生物质碳颗粒与石英砂颗粒表面形成隔绝层，从而阻止低熔点物质的生成与迁移。

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。