Though adopting two different calculation, the relation of initial gas and particle velocity ratio and movement time and kinematic range in accelerating zone was gained.
通过两种不同计算，得到气固速度比与固粒群的加速区的运动时间和距离的关系。
In the upper layer, there are the blocking speed-down zone inter-belt, the whirling speed-down zone behind the belt, the conflux accelerating zone just behind the top of shelterbelt.
在林带上部，有林带间的阻滞减速区和林带后的涡旋减速区，在林带顶后部有集流加速区。
Even more important, the latest figures suggest that, whereas productivity growth is now slowing in America, it is accelerating in the euro zone.
更重要的是，最新的数据显示，当前美国的生产力增长正在放缓，而欧元区的生产力增长则在加速。
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