The concentrating energy source focuses the energy down and reduces percussion for the ground by using the theory of directional charge.
聚能震源弹采用定向聚能的原理，使激发的能量集中向下，减少了对地面的冲击。
The splitting Mechanism, charge preparation and testing result of the loaded constitution of directional splitting in rock blasting are introduced.
介绍了一种岩石爆破定向破裂装药结构的破岩原理、制作方法及试验效果。
It is not correct that the electric charge's directional migration forms the electric current, because the electric charge cannot alone move.
“电荷的定向移动形成电流”是不正确的，因为电荷不能单独移动；
It is not correct that the electric charge's directional migration forms the electric current, because the electric charge cannot alone move.
“电荷的定向移动形成电流”是不正确的，因为电荷不能单独移动；
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