| 单词 | rotor |
| 释义 | Word Frequency rotor(ˈrəʊtə) noun 1. the rotating member of a machine or device, esp the armature of a motor or generator or the rotating assembly of a turbine Compare stator 2. a device having blades radiating from a central hub that is rotated to produce thrust to lift and propel a helicopter 3. the revolving arm of the distributor of an internal-combustion engine 4. a violent rolling wave of air occurring in the lee of a mountain or hill, in which the air rotates about a horizontal axis Word origin C20: shortened form of rotator |
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