在腹板与下翼缘的施焊中使用小矩形挡板.Small rectangular backup bars were used to fabricate the web - bottom flange connection.发生紧急状况时,拉下翼弦.Pull the cord in case of emergency.在某些情况下, 翼尖还会发生气流分离.Even in some conditions, the airflow may separ...

“下翼”的英语可以翻译为：[航空] bottom wing，lower wing ...

“下翼”的拼音为：xià yì...