raise borer
raise borer · raise borers
A machine used to excavate a circular hole between two levels of an underground mine…A machine used to excavate a circular hole between two levels of an underground mine without the use of explosives.
Meaning
1 sensesA machine used to excavate a circular hole between two levels of an underground mine without the use of explosives.
Forms
plural: raise borers| Singular | raise borer |
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| Plural | raise borers |
regular