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碱土金属 [jiǎn tǔ jīn shǔ]
alkaline earth
[无化] alkaline-earth metals
[无化] alkaline-earth metals
- 更广义的范围包括碱土金属。碱是强碱性的，会使红石蕊试纸变蓝色；
More broadly, ammonium hydroxide (see ammonia) and soluble hydroxides of the alkaline earth metals are also called alkalies. - 碱土金属（钙、钡和锶）的氢氧化物也是可溶性的强碱，但稳定性较差。
those of the alkaline earth metals (calcium, barium, and strontium), also soluble strong bases, are less stable. - 重点介绍1989年以来对碱及碱土金属化合物、烯土氧化物、复合氧化物等各类催化剂的研究进展。
The main attention focuses on the introduction of research progress on alkali and alkali earth compounds, rare earth oxides and complex oxides as catalysts since 1989.
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