Comprehensive Glossary of Mining Terms and Processes A Abandoned Mine: Excavations that are deserted and not intended for further mining. Acid Mine Drainage: Acidic drainage from coal mines, especially bituminous. Adit: Horizontal opening providing mine access. Anthracite: Hard coal with high fixed ...

Safety features for HEMMs and Heavy/Light Vehicles as outlined in the DGMS (Tech) Circular 06 of 2020 1. Rear Vision Camera The system includes a monitor and camera capable of detecting objects in blind spots. It boots automatically with the engine and shuts down accordingly. It switches to standby ...