| 单词 | 变化率 |
| 释义 | DEFINITIVE EXAMPLES 权威例句〔angular acceleration〕The rate of change of angular velocity with respect to time.角加速度，旋转加速度：角速度随时间变化的变化率美国传统〔angular velocity〕The rate of change of angular displacement with respect to time.角速度：角位移随时间变化的变化率美国传统〔derivative〕The instantaneous rate of change of a function with respect to its variable.函数随其变量的即时变化率美国传统〔derivative〕The limiting value of the ratio of the change in a function to the corresponding change in its independent variable.导数：函数相应其自变量的变化率的有限值美国传统〔gradient〕Physics The rate at which a physical quantity, such as temperature or pressure, changes relative to change in a given variable, especially distance.【物理学】 梯度：一个物理量，如温度或压力，相对于另一给定可变量（尤指距离）的变化的变化率美国传统 |
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