革新革新铸炮工场cannon_foundry_advancein_game/common/advances/1_building_unlocks.txt:508铸炮工场将金属熔炼铸造并组装为大炮。这是武装军队、增强国家军事能力的关键。需要工具车间革新requires革新树工场生产铅矿选矿工具车间铸炮工场定义in_game/common/advances/1_building_unlocks.txt:508509age = age_5_absolutism511unlock_building = cannon_foundry513requires = iron_foundry_advance
工具车间革新requires工具车间革新requires工具车间革新requires
