革新革新本版本变更船具厂naval_supplies_mill_advancein_game/common/advances/1_building_unlocks.txt:559全球贸易的持续增长对船具的需求远超以往，必须建立专业化工厂以满足供应。需要皮革厂革新requires革新树工业革命热风高炉冲天炉冶炼工艺皮革厂船具厂定义in_game/common/advances/1_building_unlocks.txt:559560age = age_6_revolutions561research_cost = -0.75562unlock_building = naval_supplies_mill563requires = tannery_mill_advance
皮革厂革新requires
皮革厂革新requires皮革厂革新requires