英语词汇pilot balloon怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	pilot balloon
释义	pilot balloonn.（名词） A small balloon used to determine wind velocity.测风气球：用来测定风速的小气球
随便看	freedmen freedom freedom fighter freedom march freedom of the seas freedom rider freedoms freedwoman freedwomen free energy free enterprise free fall free-fire zone free flight free-floating free-for-all freeform free form freehand free hand freehanded freehearted freehold freeing free kick

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