单词 | pilot balloon |
释义 | pilot balloonSEE SYNONYMS FOR pilot balloon ON THESAURUS.COM nouna balloon for the visual observation of upper-atmosphere wind currents. Origin of pilot balloonFirst recorded in 1840–50 Words nearby pilot balloonPilos, pilose, pilosebaceous, pilot, pilotage, pilot balloon, pilot bird, pilot biscuit, pilot boat, pilot burner, pilot cell Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 Example sentences from the Web for pilot balloon
British Dictionary definitions for pilot balloonpilot balloon nouna meteorological balloon used to observe air currents Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012 |
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