hydromining

例句：

1. 1.The hydromining industry is a major contributor to the country's economy.
   水力采矿业是该国经济的主要贡献者。
2. 2. The hydromining company has been operating in this region for over 30 years.
   这家水力采矿公司在这个地区运营了30多年。
3. 3.Hydromining technology has greatly improved the efficiency of mining operations.
   水力采矿技术大大提高了采矿作业的效率。