The method of the invention is applicable to the smelting of alkaline-earthmetals 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。
2
The results of determining the alkaline and alkalineearthmetals 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。
3
All alkalineearth elements have an oxidation number of +2, making them very reactive. Because of their reactivity, the alkalinemetals are not found free in nature.