radiation intensity - recovery hook
- recharge well
- rechargeable battery
- reciprocal angle
- reciprocal bearing
- reciprocal influence of deposits
- reciprocal lattice
- reciprocal sonde
- reciprocal source points
- reciprocate the string
- reciprocated the string
- reciprocating
- reciprocating feeder
- reciprocating screen
- reciprocating the string
- reciprocating trough conveyer
- reciprocity of displacements
- reclaim pump station
- reclaimed
- reclaimed land
- reclaimed timber
- reclamation
- reclamation of saline land
- reclamation of salterns
- reclamation of spoil heaps
- reclamation work
- reclassification
- recleaner
- recleaner flotation
- reclined graptolite
- reclosing
- recognaissance operations
- recognition
- recoil buffer
- recombined oil sample
- recombined oil samples
- recommendation on design and construction of tailings dams
- recompletion
- recomposed
- recomposed granite
- recon rock sample