Home > Term: main levels
main levels
The first and leading excavations in mines that are made for the purpose of opening out or winning the material being mined, and that are intended to be the principal roadways of the mine.
- Jenis Kata: noun
- Industri / Domain: Pertambangan
- Kategori: Peratmbangan secara umum; Mineral mining
- Government Agency: USBM
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Penulis
- ed.young
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(V.I.P) 21084 poin - 100% positive feedback
(Milwaukee, United States)
