23纳米等于几米?用科学计数法

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23纳米等于几米?用科学计数法23纳米等于几米?用科学计数法23纳米等于几米?用科学计数法2.3*E-82.3*10^8

23纳米等于几米?用科学计数法
23纳米等于几米?
用科学计数法

23纳米等于几米?用科学计数法
2.3*E-8

2.3*10^8