1873, irregular shortening of rotator (see rotate (v.)), originally in mathematics. Mechanical sense is attested from 1903; specifically of helicopters from 1930.
实用例句
1. rotor blades on a helicopter
直升机的旋翼叶片来自《权威词典》
2. A rotor from the engine makes the wheels of the car turn.
发动机的轮子使车轮转动.来自《简明英汉词典》
3. It is best to allow the rotor to rotate freely.
最好让转子自由旋转.来自《简明英汉词典》
4. The rotor cataracts water over the top of the machines.
回转轮将水从机器顶上注入.来自《现代英汉综合大词典》
5. Chris Retzler has built a prototype of a machine called the wave rotor.
