根据孔底空腔爆破的作用机理，结合微差爆破理论，在该采石场进行了孔底空腔微差爆破的对比试验研究。
According to the mechanism of base air-decked blasting, combined with millisecond blasting theory, the contrast tests of millisecond blasting for base air-decked were carried out in the quarry.
针对串联随进战斗部中弹丸对预开孔靶的侵彻性能，基于经典的空腔膨胀理论解析模型，建立修正的空腔膨胀理论模型，对不同尺寸预开靶孔的弹丸随进性能进行了分析。
An analytical model for the penetration of a following kinetic energy projectile into concrete targets with pre-drilled cavities is developed based on a modification of cavity expansion theory.
所述空腔容器部分的上侧设有加液孔及孔塞。
The upper part of the cavity container is provided with a liquid adding hole and a hole plug.
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