doub - dril
- double
- double acting hydraulic jack
- double bracket
- double cage winding
- double cantilever pulley
- double drive motor starter
- double earth fault
- double entry
- double face
- double heading
- double iron
- double longwall
- double shaking screen
- double unit
- double unit panel
- double-acting
- double-acting door
- double-acting hydraulic leg
- double-acting pump
- double-bank cage
- double-block brake
- double-boom drill carriage
- double-boom jumbo
- double-cage winding
- double-chain conveyor
- double-channel
- double-chisel bit
- double-cone walling crib
- double-deck cage
- double-deck screen
- double-delta connection
- double-drum haulage
- double-drum hoist
- double-drum shearer
- double-drum winch
- double-end rope haulage
- double-ended cutter loader
- double-ended ranging drum shearer
- double-ended shearer
- double-headed push-button
