observation balloon造句

"observation balloon"是什么意思

造句与例句手机版

Incendiary ammunition had been developed for use against observation balloons in france .
在法国，已经研究出用燃烧弹对付侦察气球的办法。
It's difficult to see observation balloon in a sentence. 用observation balloon造句挺难的

相邻词汇

用"observation and recording device"造句, 用"observation and theory"造句, 用"observation arc"造句, 用"observation at interval"造句, 用"observation aviation"造句, 用"observation balloons"造句, 用"observation base"造句, 用"observation basket"造句, 用"observation battalion"造句,

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