multirope winding - noise reduction
- natural paper
- natural phosphate
- natural pillar
- natural quarrying
- natural radioactivity log
- natural radioactivity logging
- natural radioactivity survey
- natural remanent magnetization
- natural reservoir
- natural resources
- natural self-supporting arch
- natural slope
- natural soil
- natural sonar
- natural source
- natural source anomaly
- natural splitting
- natural steatite
- natural strained well
- natural stream
- natural time-varying magnetic field
- natural ventilating pressure
- natural ventilation
- natural vibration
- natural water
- natural waters
- natural wax
- natural well
- naturally impounded body
- naturally occurring element
- naturally occurring material
- naturally occurring mineral
- nature
- nature of bottom
- nature of motion
- nature of sea-bed
- nature of soil
- nauckite
- naujaite
- naujakasite