adj.有差别的，差别的，以差别而定的，有区别的
n.差别，差额，差价，(尤指同行业不同工种的)工资级差，(汽车)差动齿轮，分速器，差速器行星齿轮

原形：differential复数：differentials

The differential of the function f(x) is df/dx.
这个函数f(x)的微分是df/dx。
In physics, torque is the differential force applied to an object.
在物理学中，扭矩是对物体施加的差动力。
A gear differential allows wheels on an axle to rotate at different speeds.
齿轮差速器允许车轴上的轮子以不同的速度旋转。
The differential equation describes how a system changes over time.
微分方程描述了系统随时间的变化。
She was adept at solving differential equations in her calculus class.
她在微积分课上擅长解微分方程。
The differential privacy mechanism adds noise to protect individual data.
差分隐私机制添加噪声来保护个人数据。
The car's suspension system has adjustable differential settings.
汽车悬挂系统的差速器设置可以调整。
The gradient descent algorithm uses the derivative (differential) to minimize a function.
梯度下降算法利用导数（微分）来最小化一个函数。
Economists often analyze economic growth using differential equations.
经济学家经常使用微分方程来分析经济增长。
The teacher explained the concept of partial differential equations with a real-life example.
老师用一个现实生活中的例子解释了偏微分方程的概念。