Tiexnkofng
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X-kofng (X光), ihak siong u korng tiexnkofng (電光 x-ray) si phøtngg 1 pm kaux 10 nm cy kafn ee tiexnzuphøf, si hiexntai ihak tixliaau kiafm khøhak giefnkiux ee tioxng'iaux kangkhu.