shotfirer
A pulley having different faces of different diameters giving various speeds according to the face the belt passes over.
(mining) A person employed to prepare, position and detonate explosives to demolish buildings and structures, or dislodge rocks and soil.
plural of Beetham
A military establishment for the storing, development, manufacturing, testing, or repairing of arms, ammunition, and other war materiel; an armoury.
発破作業員は装薬の配置を点検し、起爆する前に周囲の安全を確保した。
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