通过对斜碰撞过程中原煤(混矸)球的运动分析，推导出基于碰撞恢复系数的物料块反弹距离公式。
A formula of rebound distance based on coefficient of restitution was deduced through kinematic analysis of raw coal (mixed gangue) in the process of oblique-impact.
以恢复耕地土中原有的化学组成环境的自 然状态，使农作物正常生长，提高产量。
The preparation method can recover the natural state of the original chemical composition environment in the farmland, lead the crops to grow normally and improve the yield.
应用推荐