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为什么第一次世界大战为了造飞艇,大家都不准吃香肠???

小黑Polly


https://www.reddit.com/r/todayilearned/comments/607rzt/til_that_the_gas_cells_of_early_zeppelins_were/


http://www.dailymail.co.uk/news/article-2400890/Germans-banned-eating-sausages-World-War-One-intestines-250-000-cows-needed-make-Zeppelin-airship.html


https://www.theguardian.com/lifeandstyle/2013/aug/23/wurst-zeppelins-german-sausage




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