| Webster's Online Dictionary |
| Expressions | Domain | Definition | |
| Double helical bag conveyor | Mining | Closely spaced parallel tubes with right- and left-hand rounded helical threads rotating in opposite directions, on which bags or other objects are carried while being conveyed. Syn: helical bag conveyor. (references) | |
| Helical bag conveyor | Mining | See: double helical bag conveyor. (references) | |
Source: compiled by the editor from various references; see credits. | Top | ||
