balpa jeomhwa jangchi
portfire
dispositif d'allumage de tir ; dispositif d'allumage
발파 점화 장치를 사용하여 폭발을 안전하게 시작했습니다.
balpa jeomhwa jangchi-reul sayonghayeo pokbal-eul anjeonhage sijakhaessseubnida.
We used the portfire to safely initiate the explosion.
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