A：Well, Mike, nowadays there's much talk about nanometer. But what on earth is it?
麥克，現在好多人都在談論納米。它到底是個啥呀?
B：Nanometer is a length scale. It's one billionth of a meter, roughly ten times the size of an individual atom.
納米是個長度單位。一納米等于十億分之一米，大概比一個原子大10倍吧。
A：Hmm...it's hard to figure out the exact size, I'm afraid.
嗯…恐怕還不太容易想像得出它的具體大小呢。
B：Well, let's make it this way. For comparison , 10 NM is 1000 times smaller than the diameter of a human hair. There are as many nanometers in an inch as there are inches in 400 miles.
這樣說吧。10納米比一根頭發直徑的1/1000還短。一英寸所含的納米數量等于400米所含的英寸數。
A：I see.Thank you.
這樣說我就明白了。謝謝啊。
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