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单词
partial differential
释义
WordReference Random House Unabridged Dictionary of American English © 2024
par
′
tial differen
′
tial,
[
Math.
]
Mathematics
an expression obtained from a given function of several variables by taking the partial derivative with respect to one of the variables and multiplying by the increment in that variable.
1810–20
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更新时间:2025/11/27 3:49:13