underwater navigation |
水中ナビゲーション [すいちゅうナビゲーション] /(n) underwater navigation/ ------- 潜行 [せんこう] /(n,vs) underwater navigation/travelling incognito/traveling incognito/travelling in disguise/traveling in disguise/ ------- 潜航 [せんこう] /(n,vs) submarine voyage/underwater navigation/ |