noise reduction method - offset vertical seismic profile
- non-commercial flows of oil
- non-commercial reserves
- non-compacted clay
- non-compacted clays
- non-conformity
- non-converted raypath
- non-converted wave
- non-depositional hiatus
- non-depreciated equipment
- non-destructive source
- non-directional
- non-dusty mine
- non-elastic
- non-exceedance
- non-exclusive data
- non-exclusive survey
- non-expansive condition
- non-explosive source
- non-fiery mine
- non-flammabe cloth
- non-gassy seam
- non-harmonic constant
- non-magnetic vessel
- non-magnetics
- non-metal mining
- non-metallic
- non-metallic mineral
- non-outcropping
- non-productive operations
- non-safety explosive
- non-shrink
- non-spinning rope
- non-stop dumping
- non-tidal drift
- non-waste processing
- non-watertight
- nonalcalic
- nonaligned
- nonanticlinal trap
- nonaqueous carrier