负加速度 meaning in English
[物理学] negative acceleration
Examples
- The acceleration is positive if the speed is increased , negative if speed is decreased
速度增加的加速度为正加速度，速度减少的加速度为负加速度。 - If an arm is stretched forward under water resistance is increased and a reaction force backward 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。 - When a swimmer slows and then finally applies forces there are stages of slowing down ( the correct term is negative acceleration not deceleration ) and speeding up ( the correct term is positive acceleration not acceleration )
当游泳运动员慢下来然后增加力量以求得继续前进时会有不同的阶段，这就是减速阶段（正确用语是负加速度而非减速）和加速阶段（正确用语是正加速度而非加速） 。 - Extreme negative and positive acceleration phases are not a characteristic of swimmers who must be efficient ( e . g . , 200 m plus ) who usually demonstrate high rates , almost continuous propulsive force production , and minimum periods of time in long " sculling boat " positions
最终的负加速度和正加速度阶段并不是一个有效率的（例如200多米）和经常呈现高效的，能够持续产生推进力和尽可能减少处于长的皮划艇位置的时间游泳运动员的特征。 - The theory of the simulation is that , firstly put fuze and parts in simulation device in reverse , then fire them in high speed by air gun , and they fly into gun spinning quickly and impact cushion and brass block in it , negative acceleration because of impact is to simulate setback , meanwhile they spin with spin gun when impacting , so spin environment can be simulated , so the simulation system can stimulate setback and spin of fuze in fire
该模拟系统的原理是将引信及其零部件倒置在模拟弹丸中，通过空气炮以高速发射出去，然后飞入高速旋转的旋转管内，与旋转管内的缓冲块和黄铜块碰撞，碰撞而形成的负加速度作为引信发射时受到的后坐，由于碰撞时与旋转管一起旋转，模拟引信发射时的旋转环境，达到模拟引信发射后坐与旋转环境的目的。