mine electric engineering

例句：

1. 1. The mine is located in the mountains.
   这个矿井位于山区。
2. 2. The miners are working hard to extract the minerals.
   矿工们正努力开采矿物。
3. 3. The mine has been closed due to safety concerns.
   由于安全担忧，这个矿井已经关闭了。