raise borer
Noun
Meaning
raise borer (plural raise borers)
English Wikipedia has an article on:raise borerWikipedia
A machine used to excavate a circular hole between two levels of an underground mine without the use of explosives.
Noun
raise borer (plural raise borers)
English Wikipedia has an article on:raise borerWikipedia
A machine used to excavate a circular hole between two levels of an underground mine without the use of explosives.