If an arm is stretched forward under water resistance is increased and a reaction force back ward is developed both of which would contribute to negative acceleration.
如果手臂在水中是向前伸展则阻力会随之增加而向后方的反作用力也会出现，二者都会产生负加速度。
Complete the finite element procedure of conversion between epoch curve and reaction curve of earthquake acceleration.
完善地震加速度时程曲线与反应谱曲线之间转换的有限元程序。
The acceleration of chemical reaction with the radiation of microwave is caused by not only the dielectric heating, but also the athermal action.
微波加快化学反应速度除了微波对反应物的加热以外还有非致热的作用。
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