재화 수요·재화 수요수도교 체계 건설aqueduct_system_constructionin_game/common/goods_demand/building_construction_costs.txt:216정의in_game/common/goods_demand/building_construction_costs.txt:216217masonry = 0.3218lumber = 0.25219tools = 0.15220stone = 0.3221category = building_construction