MAGNESIUM AND ALKALINE-EARTH METALS 镁和碱土金属 ; 镁和碱性 ; 土金属
ALKALI OR ALKALINE-EARTH METALS 碱金属
alkaline earth alkaline-earth metals 碱土金属
alkaline-earth metals tungstate 碱土族钨酸盐
alkali and alkaline-earth metals 碱金属及碱土金属
hydrate of alkaline earth metals 碱土金属水合氯化物
We have investigated the effect of alkaline-earth metals doping on the unit cell parameters, grain-size, microstructure and morphology of BaTiO_3 fibers. According to the experiment, we have found that alkaline-earth metals could change the microstructure, unit cell parameters and morphology.
3.碱土金属掺杂钛酸钡陶瓷纤维的制备与表征考查了A位碱土金属掺杂对钛酸钡纤维的晶胞参数、粒径、微观结构及表面形貌的影响。
参考来源 - 钛酸钡系陶瓷纤维的制备与表征·2,447,543篇论文数据，部分数据来源于NoteExpress
The method of the invention is applicable to the smelting of alkaline-earth metals as well as production, such as alloy smelting, casting, pressure casting, extrusion, etc.
本发明适用于碱土金属的冶炼及其合金冶炼、铸造、压铸、挤压等生产。
The results of determining the alkaline and alkaline earth metals in the treated gasoline showed there was no loss of metals from the catalysts.
对脱砷-加氢-脱氯汽油中碱金属和碱土金属的测定结果表明，不存在催化剂的金属流失问题。
All alkaline earth elements have an oxidation number of +2, making them very reactive. Because of their reactivity, the alkaline metals are not found free in nature.
所有的碱土金属元素的化合价都是+2，这使他们非常活泼，因为他们非常活泼，也不在自然界中直接出现。
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