单词	step-down fix
释义	step-down fix step-down fix A fix permitting additional descent within a segment of an instrument approach procedure by identifying a point at which the controlling obstacle has been safely overflown. AcronymsSeeSDF
随便看	acvar acvarist acvb acvba acvc acvcc acvch acvcp acvd acve acvecc acvenf acvesa acvets acvf acvfa acvfg acvg acvh a/cvi acvi acvim acvip acvis acvk

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。