旋转刨

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

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

rotary drill bit (rotary boring head) deep drilling

flexible drive mechanism for interconverting rotary motion and oscillating motion

rotary tippler【矿】

rotary anemometer【气象】

rotary roughening【机】

rotary machinery