With the ceaseless injection of oil and the migration passage prolonging, the result is that migration force increases and oil comes into little hole near charging point.
随着油的不断注入，油相通道的延长，导致运移驱动力增加，这相应导致油进入近注入点的较小的孔隙。
By improving parameters of the blasting hole, the charge, charging structure and the priming order etc, the smooth blasting is formed.
通过改进爆破的孔网参数、装药量与装药结构、起爆顺序等，从而形成了光面爆破。
It is special important meaning that Deep - hole blasting With bottom Gap Charging is used to protect bottom rock from breaking, to decrease block ratio and to improve blasting efficiency.
深孔爆破孔底空隙装药在有效地保护底板岩层免遭破坏，减少大块率，提高爆破效率等方面均具有重要的意义。
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