It's all of those destructive factors working cumulatively and occurring much more rapidly than scientists had expected.
所有的破坏性因素都在进行量的积累,并以超出科学家预料的速度突然发生质变。
The reasonable pretreatment, right destructive height and accurate explosive quantity ensure the safety of tower blasting and meet the needs of working.
通过合理的预处理、合适的炸高设计和准确的装药计算,保证了建筑物的定向爆破安全和效果。
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