最終更新日：2022/12/07

observation balloon

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(military) A type of balloon that is employed as an aerial platform for intelligence gathering and artillery spotting.

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元となった辞書の項目

observation balloon

noun

(military) A type of balloon that is employed as an aerial platform for intelligence gathering and artillery spotting.

The observation balloon floated high in the sky.

意味（1）

(military) A type of balloon that is employed as an aerial platform for intelligence gathering and artillery spotting.