Damages caused by debris flowhead impact on structure are very grave ones among many debris flow damages.
在泥石流所带来的诸多灾害中，泥石流龙头冲击建筑物造成的危害是非常突出的。
2
The difference of bud grain which having or nothing and many or few between alike variety and different varietes. and nothing relation with flowhead place.
不同品种和同品种不同个体（或株系）间芽粒的有无和多少差异较大，而与具有芽粒性状单株的花序部位无关。
3
The equation for describing the movement of debris flowhead in submerged flow pattern is established and the method for determining the corresponding parameters is proposed.