海かい岸がん砲ほうかいがんほうMeanings1nouncoastal artillery; seacoast artilleryMilitary term for artillery pieces placed on or near the coast to defend against naval attack.この要よう塞さいには旧きゅう式しきの海かい岸がん砲ほうが残のこっている。Old coastal artillery remains in this fortress.
