Home > Term: tunnel set
tunnel set
Timbers of sufficient strength to support the roof of the tunnel. They are sometimes set upon sills and usually capped with short crosspieces.
- 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
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