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to phrases
profile drag coefficient [‘preufaɪl ˈdræg ,kəuɪ'fɪʃ(ə)nt]
auto. 面阻力系数; 轮廓阻力系数
avia. 形状阻力系数
space 翼型阻力系数
profile drag coefficient: 1 phrase in 1 subject
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