Home > Term: hole through
hole through
Successful meeting of two approaching tunnel heads, or of winze and raise.
- Vārdšķira: noun
- Nozare/domēns: Mining
- Category: General mining; Mineral mining
- Government Agency: USBM
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Autors
- ed.young
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(V.I.P) 21084 points - 100% positive feedback
(Milwaukee, United States)
