碱金属

The energy of excited state depended on the nature of different cations. 3. 4-(4-tolyl)-6-phenyl-2, 2'-bipyridine platinum acetylide complex containing a monoazazcrown moiety in the acetylide ligand could signal Mg〓 specifically and displayed large changes both in color and in luminescence intensity upon complexation with Mg〓. The most striking result was that it could signal Mg〓 specifically even in the presence of alkali and alkaline earth metal ions in high concentrations.

对位带有氮杂-15-冠-5冠醚的苯乙炔为辅助配体的4-（4-甲基苯基）-6-苯基-2，2'-联吡啶Pt络合物AC，不仅在碱金属和碱土金属的存在下吸收光谱明显改变，更有意义的是，它只有在Mg〓离子存在时能够发光，因此可以通过发射光谱选择性的识别Mg〓，尤其可以在高浓度的其它金属离子存在下选择性的检出Mg〓离子。

The catalytic activity was found to increase with the alkalescence of solvents.

提出在碱金属碳酸盐K_2CO_3的作用下可能遵循两步循环反应的反应机理。

You see, sodium is actually an alkali metal.

你应该知道，钠是一种碱金属。

Moreover, the effects of alkali metal carbonate promoters and the solvents were investigated at the same time.

考察了碱金属碳酸盐类助剂和溶剂对反应活性的影响。

The analysis of alkali metal and heavy metal contents in the gas is made.

进行了气体中碱金属和重金属含量分析。

Operation characteristics of alkali metal vapor lamps are described.

本文介绍了用作光泵的碱金属蒸气灯的运转特性。

Because it can clears away some excessive alkali metal ion.

因为它可以清除一些多余的碱金属离子盐分。

Meanwhile, some new online measurements for alkali metal vapor were introduced.

介绍了最新的几种在线测量气态碱金属的方法，提出了今后的研究方向，为煤的洁净燃烧技术的研究和应用提供有价值的参考。

Meanwhile, some new online measurement s for alkali metal vapor were introduced.

介绍了最新的几种在线测量气态碱金属的方法，提出了今后的研究方向，为煤的洁净燃烧技术的研究和应用提供有价值的参考。

Compared with coal ash, medical glass had higher contents of SiO2 and alkali metal oxides.

与煤灰成分相比，医用玻璃中的SiO2和碱金属氧化物含量较高。

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。