单词	automatic direction finder
释义	automatic direction finder noun : a navigational tool that continuously displays the bearing of a designated reference radio beacon But unlike some other relics, the ADF (automatic direction-finder) keeps rearing its ugly head like an uninvited relative who shows up at the family picnic. Instrument pilots who try to fly without a good foundation in ADF needlework can quickly run smack into an indigestible hash of headings and bearings. Thomas H. Block, Plane & Pilot, January 1994 —abbreviation ADF Word History First Known Use 1938, in the meaning defined above
随便看	OTC otes Othello otheoscope other other (than) other extreme other half other insurance other man other than other things being equal other woman other women other-directed other-directedness other-direction other-group othered otherer otherest othergates otherguess othering otherness

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