英[ˌekspəʊˌnenʃɪ\'eɪʃən]
美[ˌekspoʊˌnenʃɪ\'eɪʃən]
This is used in exponentiation expressions such as 1.39 x e - 47, which means 1.39 x 2.718 - 47.
它在象“1.39×e的-47次方”这样的指数表达式中使用, 意味着“ 1.39×2.718 的-47次方”.
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