| 单词 | alkaline-earth metal |
| 释义 | alkaline-earth metal /al"keuh luyn'errth", -lin-/, Chem. any of the group of bivalent metals including barium, radium, strontium, calcium, and, usually, magnesium, the hydroxides of which are alkalis but less soluble than those of the alkali metals. [1900-05] |
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