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.
为了提高纸靶重孔的测量准确性，提出一种基于图像减影技术的重孔识别方法。
In order to improve the accuracy of the measurement of superposition hole, an approximate solution based on image subtraction technique to identify the superposition holes was put forward.
磨料水射流加工孔的直径和深度随靶距的增加而增加。
The diameter and depth of the holes eroded by HPAWJ increase with the increase of stand-off-distance.
实验结果表明：相同参数条件下半腔靶与孔靶相比，激光能量注入率减少约10%。
The experimental results show that under the same conditions the laser energy injection efficiencies for half-cavity targets are 10 percent lower than those for hole targets.
实验结果表明：相同参数条件下半腔靶与孔靶相比，激光能量注入率减少约10%。
The experimental results show that under the same conditions the laser energy injection efficiencies for half-cavity targets are 10 percent lower than those for hole targets.
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