重复传输 meaning in English

duplicate transmission
repeat transmission
retransmit
retransmsstion

According to similar ft3 frame format and its checkout mode of dnp data link layer , the relationship between fer ( frame error rate ) and ber ( bit error rate ) , frame length is deduced . the computation formulas of average transmission times and repeat transmission times guaranteeing the correct transmission of telecontrol information are given as well
根据dnp3 . 0规约数据链路层类ft3帧及其校验方式，推导出帧传输失败概率(误帧率)与通道误比特率和帧长的关系，同时给出平均传输次数和重复传输次数的计算公式。