词典论坛联络

   英语 +
Google | Forvo | +
短语

rated coverage

运输, 政治 zonă de acoperire nominală
 英语 词库
rated coverage
航空, 加拿大 The area surrounding a non-directional beacon NDB within which the strength of the vertical field of the ground wave exceeds the minimum value specified for the geographical area in which the NDB is situated
rated coverage
: 1 短语, 1 学科
通讯1