Koch triangle

例句：

1. 1. The Koch triangle is a region in the Middle East where oil reserves are concentrated.
   科赫三角形是中东一个石油储备集中的地区。
2. 2. The discovery of oil in the Koch triangle has led to increased tourism and economic development.
   科赫三角形的石油发现促进了旅游业和经济发展。
3. 3. The Koch triangle is often used as a metaphor for the complexity of the world's energy systems.
   科赫三角形常被用作世界能源系统的复杂性的隐喻。