Blasting flying rocks often cause people mortal injury.
爆破飞石常常对人员造成致命伤害。
To avoid the hazard of flying rocks, the most suitable direction of burden were selected or created according to concrete topographical conditions.
根据具体的地形条件，选择或创造合适的最小抵抗线方向，避免飞石的危害。
The open-air explosion hazards are seismic effect, blasting individual flying rocks, blasting toxic gases, explosive air shock wave and noise hazards.
露天爆破的危害有爆破地震效应、爆破个别飞石、爆破有毒气体、爆炸空气冲击波和噪声等危害。
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