rota - scal
- rotameter
- rotary
- rotary acceleration
- rotary agitation
- rotary antenna
- rotary attenuator
- rotary beam antenna
- rotary beam splitter mirror
- rotary blower
- rotary boiler
- rotary breaker
- rotary chain
- rotary compressor
- rotary crusher
- rotary cutter
- rotary disc filter
- rotary dispersion
- rotary displacement compressor
- rotary drier
- rotary drum drier
- rotary drum filter
- rotary drum mixer
- rotary dry vacuum pump
- rotary field
- rotary filter
- rotary furnace
- rotary gas meter
- rotary hose
- rotary jig
- rotary joint
- rotary mercury pump
- rotary mill
- rotary moment
- rotary moulding
- rotary movement
- rotary oven
- rotary phase shifter
- rotary preforming press
- rotary pump
- rotary retort
