open pit mining मीनिंग इन हिंदी

उदाहरण वाक्य

1. This can happen in open pit mines as well as in underground mines.
2. Like the Robinson mine, it is an open pit mine and produces copper.
3. Since it is an open pit mine it would disturb the natural environment.
4. Pre-open pit mining began in 1863 by Comstock Lode miners.
5. Open Pit mining at Nchanga started in 1955, in the main Nchanga Open Pit.
6. It is also an open pit mine and produces copper.
7. The Cullinan kimberlite was discovered in 1902 and in 1903 open pit mining commenced.
8. Gold in Bolivia is produced mainly from open pit mine through a carbon-in-leach operation.
9. Open pit mining started at the Rowe mine in 1912.
10. The open pit mine has operated over historic underground gold mine workings since 1988.