rotaryKK [ˈrotɚi] ｜ /ˈroʊtɚi/
GEPT 中高級
C2adjective
moving in circles or a circle
The blades of a helicopter move in a rotary motion to create lift and allow it to stay in the air.
旋轉的；做圓周運動的
C2adjective
relating to or characterized by rotation
The rotary blades of the helicopter were spinning at high speed.
回轉的；關乎旋轉的
C2noun
a road junction at which traffic moves in a circle around a central island
When approaching the rotary, be sure to yield to traffic already in the circle.
C2noun
an electrical device used for converting alternating current to direct current or vice versa, consisting of a synchronous motor
The workshop is looking for a new rotary device to convert the alternating current into direct current for their machinery.