The wake survey cannot be used to measure the drag of stalled airfoil or of airfoils with flaps down . 尾流测量不能用来测量失连状态下的冀型或襟翼偏转后的翼型阻力。
As design studies progressed it was found that several airfoil shapes could be used to satisfy the new performance criteria . 当进行设计的研究工作后,发现有几种翼型可以用来满足新的性能指标。
Computation of glaze ice accretion on airfoil 考虑传质传热效应的翼型积冰计算
Heating radiator . cast iron column - wing - type radiator 采暖散热器.灰铸铁柱翼型散热器