参考边 meaning in English

reference edge
referenced edges only

Reference side band power
参考边带功率
That portion of a tape on a line perpendicular to the reference edge , on which binary characters may be written or read simultaneously
磁带中垂直于参考边的线上可以同时读或写二进制字符的那一部分。
In optical character recognition , the condition of a line that is not exactly perpendicular to the reference edge of the document being scanned , or is not exactly parallel with preceding and succeeding lines
在光学字符识别中,不完全垂直于被扫描文件的参考边,或不完全平行于前一行和后续行的那一行的状态。