名词
中文翻译：Unknown
同义词：
['AERO', 'EFFECTIVENESS', 'EFFICIENCY']
例句：
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1. The AEF of the aircraft is critical for its performance.
飞机的气动效率对其性能至关重要。
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2. The efficiency of the new machine exceeds that of the old one by a factor of two.
新机器的效率比旧机器高出两倍。
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3. The company's AEF has been improving steadily over the past year.
公司过去一年的气动效率一直在稳步提升。