“pilot balloon”的概念、定义、翻译、参考文献-科学参考

单词	pilot balloon
释义	pilot balloon [`pī·lǝt bǝ´lün] ^ENGINEERING A small balloon whose ascent is followed by a theodolite in order to obtain data for the computation of the speed and direction of winds in the upper air.
随便看	ftc F test ft-L ft-lb ft-lbf ft-pdl fT value FU fu Fubini's theorem Fucales Fuchsian differential equation Fuchsian group fuchsin fuchsinophile fuchsite fucoid fucoidin Fucophyceae fucoxanthin Fucus FUDR fuel fuel assembly fuel bed

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