a mining company的用法和样例：
- A mining company hopes to extract precious metals from the surrounding sea-bed.
- The species was found during an environmental impact survey for a mining company, and is one of 298 new plant species named last year in western Australia alone.
- Chalco to acquire as a result of Rio Tinto deal fails, Minmetals acquisition of OZ as a mining company in Australia, China one of the largest transactions.
- The ship's bow was blown off by a mine.
- He was trained there as a mining engineer.