Miller thought earlier that the primitive atmosphere must be free of oxygen since oxygen may quickly destruct the randomly formed amino acids, preventing the formation of proteins. 米勒把原始大氣想象成是完全無(wú)氧的環(huán)境,因為氧氣會(huì )迅速破壞隨機產(chǎn)生的氨基酸,防止蛋白質(zhì)的形成。