pit frame

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English[edit]

Etymology[edit]

pit +‎ frame

Noun[edit]

pit frame (plural pit frames)

  1. (mining) A headframe.[1]

References[edit]

  1. ^ Ernst, Dr.-Ing. Richard (1989). Wörterbuch der Industriellen Technik (5th ed.). Wiesbaden: Oscar Brandstetter, 1989. →ISBN