[2478] Alien Visitors 2
Title Text:”Although fresh juice DOES sound–” “NO! For humanity to survive we must learn from the mistakes of the past.” Origin:https://xkcd.com/2478/ https://www.explainxkcd.com/wiki/index.php/2478:_Alien_Visitors_2 外星访客 2 “不过鲜榨果汁听起来确实–” “不!为了人类的存续我们要从过去的错误中吸取教训。” 脚注: (CH3CH2)4Pb:四乙基铅一度广泛使用作为添加剂在汽油,以提高燃料的辛烷值,以防止发动机内发生爆震,从而能够使用更高的压缩比率,藉以提高… Read more
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