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Nāi-bí

Wikipedia (chū-iû ê pek-kho-choân-su) beh kā lí kóng...

Nāi-bí (奈米; nanometre; hû-hō: nm) sī chi̍t ê tn̂g-tō͘ ê tan-ūi, sī 1 kong-chhioh ê 10 ek hun-chi 1 (1nm=10-9m).