mining shaft and open-pit

• 采矿井场

mining shaft and open-pit的用法和样例：

例句

1. There are so mamy things for us to see and study in this well site.
   在这个井场有这么多我们要看和学习的东西。
2. Wellsite informationization is the needs of oil exploration and development.
   井场信息化是现代石油勘探与开发的需要。