大家都搜：
[计]时间导数，时间微商
1、convective derivative───n.随流导数；[流]迁移导数；传递导数
2、derivative calculator───导数计算器
3、indicated derivative───指示导数
4、trigonometric derivative───三角导数
5、derivative rules───派生规则
6、derivative action───[自]微商作用
7、derivative───adj.（艺术家或艺术作品）模仿的；受……影响的；（金融产品）衍生的；n.派生物；金融衍生产品；派生词；（化学）衍生物；导数
8、first derivative───一阶导数；一阶微商
9、cosine derivative───余弦导数
1、I'm going to take the time derivative just as I did in the case of the spring.───我将要提取时间，就像我在，弹力那个例子里那样。
2、On the determination of acid content by second-time derivative───二级微商法准确测定酸的含量
3、integral, rather than the time derivative thereof.───我更关注整体，而不是由此衍生出来的时间。
4、I take the time derivative.───我会计算时间导数。
5、The second time derivative is the constant acceleration.───的二阶导数就是这个恒加速度。
6、Next, begs personally evenly based on a sign theory a NURBS curve step, the second time derivative, the curvature and so on.───其次，基于标架理论平面求NURBS曲线的一阶，二阶导数，曲率等。
7、Some first order time derivative terms are contained in the equations.───方程中含有强迫场的一阶时间导数项。
1、We've done this before-- this is the conservation of energy, and in order to find the period of the simple harmonic oscillation, we take the time derivative.
2、The second time derivative is the constant acceleration.
3、There is a power law relation between the modificatory factor and the time derivative of the period.
4、I focussed on the integral, rather than the time derivative thereof.