導坑 どうこう noun (common) (futsuumeishi) 導坑どうこう Noun English JMdict (multilingual) 1 noun (common) (futsuumeishi) civil engineering pilot tunnel 漢字 kanji used 導 guidance, leading 15画 坑 pit, hole 7画
導坑どうこう Noun English JMdict (multilingual) 1 noun (common) (futsuumeishi) civil engineering pilot tunnel
Shirabe