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单词
empirical formula
释义
WordReference Random House Unabridged Dictionary of American English © 2024
empir
′
ical for
′
mula,
[
Chem.
]
Chemistry
a chemical formula indicating the elements of a compound and their relative proportions, as (CH
2
O)
n
. Cf.
molecular formula, structural formula.
1820–30
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更新时间:2025/9/21 19:40:15