| Webster's Online Dictionary |
| Expressions | Domain | Definition | |
| Hard-coal plow | Mining | A plow type of cutter loader for cutting the harder coal seams. It consists of stepped kerving bits that precut the coal, leaving the unstressed coal to be cut by the following bits. The kerving bits may be either rigid or swiveling. See also: rapid plow. (references) | |
Source: compiled by the editor from various references; see credits. | Top | ||
