That's the first derivative of the position versus time.
它就是位置，对时间的一阶导数。
For the first time, derivative distribution of velocity in cell is presented and some new conclusions are obtained.
首次给出了电池内的速度导数分布，得出了一些新的结论。
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。
CONCLUSION: compound 1 was a new diphenylmethane derivative, and compounds 2-6 were isolated from the genus Uvaria for the first time.
结论：化合物1是一个新的二苯甲烷类衍生物，化合物2 - 6皆为紫玉盘属植物中首次分到。
CONCLUSION: compound 1 was a new diphenylmethane derivative, and compounds 2-6 were isolated from the genus Uvaria for the first time.
结论：化合物1是一个新的二苯甲烷类衍生物，化合物2 - 6皆为紫玉盘属植物中首次分到。
应用推荐