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单词
law of definite composition
释义
WordReference Random House Unabridged Dictionary of American English © 2024
law
′
of def
′
inite composi
′
tion,
Chemistry
the statement that in a pure compound the elements are always combined in fixed proportions by weight.
[
Logic.
]
the law that either a proposition or its denial must be true.
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更新时间:2025/11/18 9:43:42