rating - resistance wire
- rating
- ratio
- raw materials
- raw materials storage
- Rb
- Re
- re-extract
- re-extractant
- re-extraction
- reactants
- reaction order
- reaction rate
- reaction smelting
- reactions
- reactive capacity
- reagent
- reagent flotation activity
- reamer
- rebellious concentrate
- reblowing
- rebound hardness tester
- receiver
- receiving hopper
- receiving nozzle
- receiving roll table
- reciprocal lattice
- reciprocating pump
- reclaiming
- reconstruction of enterprises
- recoverable defect
- recovered grain
- recovery
- recovery
- recovery
- recovery of metals
- recrystalliza-tion
- recrystallization
- recrystallization annealing
- recrystallization diagram
- rectangle
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