非极性归零记录制 nonpolarized return to zero recording

异码变化不归零记录 nonreturn to zero change recording

不归零记录 non-return to zero recording ; non-return-to-reference recording ; NRZ ; non-return-to-zero 'mark' recording

极化归零记录 polarized return-to-zero recording ; polarizedreturn-to-zerorecordingRZP

不归零记录法 referencerecording

非归零记录法 nonreturn to reference recording

非归零记录 nonreturn-to-zero recording

非极化归零记录 non-polarized return-to-zero recording

极化归零制记录 polarized return to zero recording