单词	ground signals
释义	ground signals ground signals A visual signal displayed on an airfield to give local air traffic rules information to flight crews in the air. See also signal area. ground signals ground signals A visual signal displayed on an airfield to give local air traffic rules information to flight crews in the air. These signals are displayed in a signal area 12 m2 and bounded by a white border. Such signal areas are located at aerodromes where general aviation movements are significant. The signal area, or signal square as it is more commonly known, is located so that it is easily visible from all directions of approach. The signals in the illustration can be seen in the signal area.
随便看	rewrite rule rewrites rewrites history rewrites the history books rewrites the record books rewrite system rewrite the history books rewrite the record books rewriting rewriting history rewriting logic rewriting techniques and applications rewriting the history books rewriting the record books rewritten rewritten history rewritten the record books rewrote rewrote history rewrote the history books rewrote the record books rew(s) rewson rewst rewt

英语词典包含2567994条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。