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atomic number 38
n.
a soft silver-white or yellowish metallic element of the alkali metal group; turns yellow in air; occurs in celestite and strontianite
同义词:
strontium
Sr
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atomic number 38
n.a soft silver-white or yellowish metallic element of the alkali metal group; turns yellow in air; occurs in celestite and strontianite 同义词:strontiumSr
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