alkali metals的例句大全

Potassium: Chemical element , one of the alkali metals, chemical symbol K, atomic number 19.

钾: 一种碱金属化学元素, 化学符号k, 原子序数19.

All the alkali metals have a single s-electron outside a closed shell.

所有的碱金属都在闭合壳层之外有一单个S电子.

The free alkali metals react immediately with water to liberate hydrogen.

游离的碱金属直接和水中作用,放出氢气.

All the alkali metals have a singles-electron outside a closed shell.

换句话说,整个能级谱恰好就像是上下颠倒的碱金属能级谱一样.

The hydroxides of the alkali metals are strongly alkaline.

碱性金属的氢氧化物有很强的碱性.

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.

Alkali metals ( Li, Na, K and Cs ) 12-tungstophosphates were prepared and characterized byand XRD techniques.

以 鸽 磷酸为原料制备了锂 、 钠 、 钾、铯的鸽磷酸碱金属盐.

The fluorescent and colorimetric identification of sensors A-F for the common alkali metals, alkaline earth metals, transition metals and heavy metals were tested, it was found that this type of sensors has a good selective recognition ability for Fe+.

通过探针A-F对常见的碱金属，碱土金属，过渡金属及重金属的荧光和比色识别实验发现，这一类探针对Fe3+具有优异的特定选择性识别能力。

Many of metal ions such as alkali metals, alkaline-earth metals and transitional metal ions don't interfere with the detection of Pd~ 2+.

其它重金属离子以及碱金属离子、碱土金属离子对Pd~（2+）离子的测定基本没有干扰。

The impact of mixing ratio, alkali metals and alkaline earth metals on the ash melting temperature were discussed.

探讨了混合比例以及碱金属和碱土金属等因素对灰熔融温度的影响规律。

Synthesis, Characterization and Crystal Structure of Novel Hydrated Alkali Metals Borates

新型水合碱金属硼酸盐的合成、表征及晶体结构

Odinites associated with gold bearing quartz vein are enriched with large ionic lithophile element ( LILE), H 2O, CO 2, Au and alkali metals, which are all the enriched composition by ore forming fluid.

与含金石英脉伴生的橄榄拉辉煌斑岩富含大离子亲石元素（LILE）、H2O、CO2、Au和碱金属，这些都是成矿流体富集的成分；

Although many researchers managed to improve the catalytic stability of Ni catalyst by addition of alkaline-earth metal and alkali metals to the catalyst, no breakthrough was obtained.

尽管很多学者在Ni基催化剂中加入稀土元素或碱金属以提高Ni基催化剂的活性和稳定性，一定程度上提高了其抗积炭能力，但没有取得突破性的进展。

Separation and determination of alkali metals and alkaline earths by ion chromatograph with single COLUMN-SINGLE conductivity detector

单柱离子色谱测定碱金属与碱土金属的研究及应用

The pyrolysis and gasification are two main methods of biomass thermo-chemical utilization. The alkali and alkaline earth metals ( AAEMs) play an important role during the utilization of biomass which are rich in AAEMs.

生物质的热解和气化是重要的热化学利用方式，而碱/碱土金属作为生物质内富含的元素，对其热利用过程产生了较大的影响。

In a series of reactions, the concentration of H~+, CO_2 and H_4SiO_4, and especially the content of alkali and alkaline earth metals controls the reaction process and determines the type of solid phase weathering products.

在一系列反应中，氢离子、CO2、和H4SiO4浓度，尤其是碱性和碱土金属含量控制着反应过程和固相风化产物的类型。