longitudinal back-up check character的意思|示意
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纵向备份检查字符
longitudinal back-up check character的网络常见释义
纵向冗余校验字符 ... coal sample for back-check 存查样 longitudinal back-up check character 纵向冗余校验字符 turn-back check 素色阔边小格棉布 ...