Terms for subject Coal containing fan

English	Italian
fan cut	mina a raggiera
fan cut	intesto a ventaglio
fan drilling	perforazione ventagli
gallery type fan drift	tunnel di ventilazione
to produce water-curtains by means of nozzles producing a flat fan discharge	realizzare delle cortine d'acqua per mezzo di ugelli a getto piatto
ring or fan drilling	perforazione radiale