nabyongje
leadwork
travail du plomb ; ouvrage en plomb ; fabrication de plomb
납용제를 사용하여 전선의 연결을 강화했습니다.
napyongje-reul sayonghayeo jeonseon-ui yeongyeol-eul ganghwa-haessseubnida.
Leadwork was used to strengthen the connection of the wires.
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