词典论坛联络

   英语 +
Google | Forvo | +
短语
 英语 词库

restricted instrument procedure

强调
航空, 加拿大 An instrument approach, departure or transition procedure that is not authorized for public use, but that has been approved by Transport Canada for restricted use by one or more operators and by the military provided that operational requirements are met
restricted instrument
: 7 短语, 4 学科
技术1
空间1
航天1
航空4