| 单词 | propeller flutter |
| 释义 | > as lemmaspropeller flutter propeller flutter n. ΚΠ 1916 H. Barber Aeroplane Speaks 125 Propeller ‘flutter’or vibration, may be due to faulty pitch angle, balance, camber, surface area, or to bad mounting. 1993 Flight Internat. (Nexis) 21 Apr. Airflow is quite moderate in typical camera positions, without the vibration which limits the helicopter's acceptance by photographers, and without propeller flutter. < as lemmas |
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