What has cut the crack and expanded further has blown up simulation number value to calculate, expand the function played on the crack after verifying the main powderbag.
进行了切割裂隙进一步扩展的爆破模拟数值计算，验证了主药包对裂缝扩展所起的作用。
3
Principle analyse produce powderbag stress produced to explode involve and produce and catch gas can cut function mechanism that crack expand further gathering mainly according to fracture mechanics.