The paper also sets up a new concept of bottom aircolumn effect and discusses the action mechanism of bottom aircolumn effect.
文中提出了底部空气柱效应新概念，探讨了底部空气柱效应的作用机理。
2
The most important motivated mechanism which caused the heavy rain in Fuyuan and Malong is the coupling of stronger ascending motion and profound saturation aircolumn.
强降水发生时有强的上升运动与深厚饱和气柱互耦结构是富源、马龙大暴雨产生的重要动力机制。
3
With the index of cut hole's volume, depth and blasting fragmentation in the thesis, the simulated tests have been carried out upon cut blasting of bottom aircolumn and conventional charge.