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wangfuwang
下崗農民
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樓主  發(fā)表于: 2019-06-17 09:34
近期在商場(chǎng)買(mǎi)東西發(fā)現一個(gè)問(wèn)題有點(diǎn)想不通 ，在商場(chǎng)內選了已打碼標價(jià)產(chǎn)品  ，付錢(qián)時(shí)有一個(gè)漏了掃碼 （沒(méi)付上款），這時(shí)出門(mén)安檢會(huì )報警，這個(gè)安檢是如何檢測到那個(gè)沒(méi)款的。難道條形碼是特殊的油墨。帶有磁性 。
tkggtdkjpl
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1樓  發(fā)表于: 2019-06-17 09:41
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