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thin bed mining

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  • Underground mining equipment —   A coal cutting machine is used in conventional mining to undercut, top cut, or shear the coal face so that coal can be fractured easily when blasted. It cuts 9 to 13 feet into the bed.   Continuous auger machine is used in mining coalbeds less… …   Energy terms

  • Surface mining equipment —   An Auger machine is a large, horizontal drill, generally 3 feet or more in diameter and up to about 100 feet long. It can remove coal at a rate of more than 25 tons per minute.   A bucket wheel excavator is a continuous digging machine equipped …   Energy terms

  • Brat — Brat, n. (Mining) A thin bed of coal mixed with pyrites or carbonate of lime. [1913 Webster] …   The Collaborative International Dictionary of English

  • Girdle — Gir dle, n. [OE. gurdel, girdel, AS. gyrdel, fr. gyrdan; akin to D. gordel, G. g[ u]rtel, Icel. gyr?ill. See {Gird}, v. t., to encircle, and cf. {Girth}, n.] [1913 Webster] 1. That which girds, encircles, or incloses; a circumference; a belt; esp …   The Collaborative International Dictionary of English

  • girdle — Gir dle, n. [OE. gurdel, girdel, AS. gyrdel, fr. gyrdan; akin to D. gordel, G. g[ u]rtel, Icel. gyr?ill. See {Gird}, v. t., to encircle, and cf. {Girth}, n.] [1913 Webster] 1. That which girds, encircles, or incloses; a circumference; a belt; esp …   The Collaborative International Dictionary of English

  • Girdle bone — Girdle Gir dle, n. [OE. gurdel, girdel, AS. gyrdel, fr. gyrdan; akin to D. gordel, G. g[ u]rtel, Icel. gyr?ill. See {Gird}, v. t., to encircle, and cf. {Girth}, n.] [1913 Webster] 1. That which girds, encircles, or incloses; a circumference; a… …   The Collaborative International Dictionary of English

  • Girdle wheel — Girdle Gir dle, n. [OE. gurdel, girdel, AS. gyrdel, fr. gyrdan; akin to D. gordel, G. g[ u]rtel, Icel. gyr?ill. See {Gird}, v. t., to encircle, and cf. {Girth}, n.] [1913 Webster] 1. That which girds, encircles, or incloses; a circumference; a… …   The Collaborative International Dictionary of English

  • Pectoral — Girdle Gir dle, n. [OE. gurdel, girdel, AS. gyrdel, fr. gyrdan; akin to D. gordel, G. g[ u]rtel, Icel. gyr?ill. See {Gird}, v. t., to encircle, and cf. {Girth}, n.] [1913 Webster] 1. That which girds, encircles, or incloses; a circumference; a… …   The Collaborative International Dictionary of English

  • Pelvic — Girdle Gir dle, n. [OE. gurdel, girdel, AS. gyrdel, fr. gyrdan; akin to D. gordel, G. g[ u]rtel, Icel. gyr?ill. See {Gird}, v. t., to encircle, and cf. {Girth}, n.] [1913 Webster] 1. That which girds, encircles, or incloses; a circumference; a… …   The Collaborative International Dictionary of English

  • Sea girdle — Girdle Gir dle, n. [OE. gurdel, girdel, AS. gyrdel, fr. gyrdan; akin to D. gordel, G. g[ u]rtel, Icel. gyr?ill. See {Gird}, v. t., to encircle, and cf. {Girth}, n.] [1913 Webster] 1. That which girds, encircles, or incloses; a circumference; a… …   The Collaborative International Dictionary of English

  • Shoulder — Girdle Gir dle, n. [OE. gurdel, girdel, AS. gyrdel, fr. gyrdan; akin to D. gordel, G. g[ u]rtel, Icel. gyr?ill. See {Gird}, v. t., to encircle, and cf. {Girth}, n.] [1913 Webster] 1. That which girds, encircles, or incloses; a circumference; a… …   The Collaborative International Dictionary of English

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