The damage degree of minefield for an artillery battalion is studied based on the firing theory. The calculation model of destruction effectiveness of minefield in air blast firing is set up.

应用射击理论，研究炮兵营对雷场的破坏程度，建立弹丸空炸时雷场毁伤效能计算模型。

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The weapons have different firepower, rate of fire, firing range, blast radius and price.

该武器有不同的火力，射速，射程，爆炸半径和价格。

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The distribution of overpressure field and the biological effects of muzzle blast wave during gun firing were explored.

初步探讨了炮口冲击波的超压场分布和生物效应。

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Witnesses said the blast was triggered by neighborhood residents firing gunshots into the air celebrating the return of electricity to the area.

CNN: Bush calls end to 'major combat'