marsh ore

例句：

1. 1. The marsh ore is a valuable resource for the local economy.
   沼泽矿是当地经济的重要资源。
2. 2.The mining company has been extracting marsh ore from this area for decades.
   这家矿业公司几十年来一直在这个地区开采沼泽矿。
3. 3.The marsh ore is mined using advanced technology to ensure sustainable extraction.
   使用先进的技术开采沼泽矿，以确保可持续提取。