open face blasting

例句：

1. 1. The construction crew was performing anopen-face blasting operation on themountain.
   施工队正在山上进行露天爆破作业。
2. 2. Open-face blasting is amethod of breaking rock that involves using explosives to split the rock into smaller pieces.
   露天爆破是一种破碎岩石的方法，它使用爆炸物将岩石分裂成更小的碎片。
3. 3. The safety measures for open-face blasting are stricter thanthose for underground mining.
   露天爆破的安全措施比地下采矿更为严格。