scramble non-return-to-zero change on one

英 [ˈskræmbl ˈnəʊn rɪˈtɜːn tu ˈzɪərəʊ tʃeɪndʒ ɒn wʌn] 美 [ˈskræmbl ˈnoʊn rɪˈtɜːrn tu ˈzɪroʊ tʃeɪndʒ ɑːn wʌn]
scramble non-return-to-zero change on one
加扰逢1变化不归零制