activated coal plough

activated coal plough

[′ak·tə‚vād·əd ′kōl ‚plau̇]
(mining engineering)
A type of power-operated cutting blade used for coal seams too hard to be sheared by a normal blade.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
Full browser ?