例句與造句

1. The wake survey cannot be used to measure the drag of stalled airfoil or of airfoils with flaps down .
   尾流測量不能用來測量失連狀態(tài)下的冀型或襟翼偏轉(zhuǎn)后的翼型阻力。
2. It's difficult to find with flaps down in a sentence. 用with flaps down造句挺難的