track allocation磁迹: magnetic track; track定位: fixed position; location; or ...滑降航迹定位器: glide-path localizer声迹定影: sound track fixing半磁迹: half track下载手机词典可随时随地查词查翻译关注微信公众号:chachacidian,回复:磁迹定位,即可在微信中查询翻译