goaf
11gob — Goaf Goaf; n.; pl. {Goafs}or {Goaves}. [Cf. 1st {Gob}.] (Mining) That part of a mine from which the mineral has been partially or wholly removed; the waste left in old workings; called also {gob} . [1913 Webster] {To work the goaf} or {To work… …
12To work the gob — Goaf Goaf; n.; pl. {Goafs}or {Goaves}. [Cf. 1st {Gob}.] (Mining) That part of a mine from which the mineral has been partially or wholly removed; the waste left in old workings; called also {gob} . [1913 Webster] {To work the goaf} or {To work… …
13Longwall mining — is a form of underground coal mining where a long wall (typically about 250 400 m long) of coal is mined in a single slice (typically 1 2 m thick). The longwall panel (the block of coal that is being mined) is typically 3 4 km long and 250 400 m… …
14Luftstreitkräfte der USA — United States Air Force Siegel der Air Force Aufstellung 18. September 1947 Land …
15Luftstreitkräfte der Vereinigten Staaten — United States Air Force Siegel der Air Force Aufstellung 18. September 1947 Land …
16Luftwaffe der Vereinigten Staaten — United States Air Force Siegel der Air Force Aufstellung 18. September 1947 Land …
17U.S. Air Force — United States Air Force Siegel der Air Force Aufstellung 18. September 1947 Land …
18U.S. Airforce — United States Air Force Siegel der Air Force Aufstellung 18. September 1947 Land …
19US-Luftstreitkräfte — United States Air Force Siegel der Air Force Aufstellung 18. September 1947 Land …
20US-Luftwaffe — United States Air Force Siegel der Air Force Aufstellung 18. September 1947 Land …