| 单词 | first derivative |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔accent〕A mark used as a superscript to indicate the first derivative of a variable.撇号：置于右上角的符号，用以标明变量的第一个导数美国传统〔speed〕The limit of this quotient as the time of travel becomes vanishingly small; the first derivative of distance with respect to time.瞬时速度：当运动时间小到可以忽略时，此商数的极值；距离相对于时间的一阶导函数美国传统 |
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