旋转接头

feeder, rotary filling containers with fluent solid material by means of rotary feeders

rotary haymaker (rotary-drum rake and tedder) haymaking (haying)

rotary type drive, pneumatically drive used in boreholes

rotary valve

rotary spade harrow (diamond harrow)

rotary drill bit (rotary boring head) deep drilling

rotary-drilling machine with gearing for mining

rotary snow plough for removing snow from railway tracks