| 释义 |
alkaline earth metal
释义
周期表中第二族元素，包括铍、镁、钙、锶、钡和镭等具有二价强碱性的金属元素，也称为碱土金属
例句
1·By two alkyl halide with alkali metal or alkaline earth metal polysulfides from condensation.
由二卤代烷与碱金属或碱土金属的多硫化物缩聚而成。
2·Because of high alkaline earth metal content, the reduction swelling of Baotou pellet makes blast furnace operation very difficult.
包头白云鄂博矿碱金属含量高，球团还原膨胀率高，给高炉冶炼带来很大困难。
3·The complexation properties of them with alkali and alkaline earth metal ions have been investigated by means of visible spectra in solutions.
借助于可见光谱的测定，考查了它们在溶液中与碱金属和碱土金属盐等的配位性能。
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