comb - cone
- comb layering
- comb structure
- combination
- combination advance-and-retreat method
- combination advance-and-retreat system
- combination cutting and loading machine
- combination cutting-and-con-veying unit
- combination drilling
- combination gas
- combination induced and scattered gamma-ray borehole logging set
- combination jumbo-loader
- combination locomotive
- combination machine
- combination multiclone precipitator unit
- combination riffles
- combination rig
- combination socket
- combination string
- combination system
- combination tap-and-die collar
- combination water
- combine
- combined cage and skip
- combined curb
- combined exhaust-and-forced ventilation
- combined flushing and ramming
- combined fuse connection
- combined machine
- combined mine
- combined mining
- combined mining method
- combined open-pit transport
- combined operation of fans
- combined overhand and underhand stoping
- combined overhand square-set and underhand pillar work
- combined pressure and exhaust ventilation system
- combined shaft sinking method
- combined shrinkage-and-caving system
- combined silica
- combined stoping
