必要交易品·必要交易品パウンドロック運河の建設pound_lock_canal_infrastructure_constructionin_game/common/goods_demand/building_construction_costs.txt:566定義in_game/common/goods_demand/building_construction_costs.txt:566567masonry = 0.5568lumber = 0.5569tools = 0.25571category = building_construction