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。
The acceleration is positive if the speed is increased, negative if speed is decreased.
实验结果表明，在高加速度过载加载条件下从延期装置端口抛射出部分延期药颗粒，且延期药抛射量随过载加速度的增大而增加。
The results indicated that a portion of the delay charge was projected from the end of the delay unit during the course of the experiment, and the projecting quantity increased with the acceleration.
振动加速度峰值受轮轴荷载的影响较大，基本上呈线性增加趋势； 而列车长度对振动加速度的影响较小。
The effects on the ground vibration by the factors such as the length, the load and the speed of the train are analyzed.
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