Warning: file_put_contents(): Only 0 of 5151 bytes written, possibly out of free disk space in /www/wwwroot/ppbbu/5256789.com/index.php on line 55 lift-up flaps是什么意思，lift-up flaps的翻译，lift-up flaps音标、读音、用法和例句_绿查网谷歌词典
On modern jets almost the entire leading and trailing edges are taken up by lift-increasing flaps and slats for takeoff and landing. 在现在的喷气机上，几乎所有的前后缘都被用于起飞和降落的提高升力的襟翼和缝翼所占据。 blog.sina.com.cn