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单词
barium sulfate
释义
WordReference Random House Unabridged Dictionary of American English © 2024
bar
′
ium sul
′
fate,
[
Chem.
]
Chemistry
a white, crystalline, water-insoluble powder, BaSO
4
, used chiefly in the synthesis of pigments, as in paints and printing inks, and, because of its radiopacity, for x-ray diagnosis in medicine.
1870–75
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更新时间:2025/12/20 20:47:53