质因数 meaning in English

prime factor

Fibre optic communication subsystem test procedures - digital systems - part 2 - 8 : determination of low ber using q - factor measurements
光纤通信子系统基本试验过程.数字系统.第2 - 8部分:用品质因数测量法测定低位错率
Fibre optic communication subsystem basic test procedures - test procedures for digital systems - determination of low ber using q - factor measurements
光纤通信子系统基本试验规程.数字系统的试验规程.用品质因数测量法测定低ber二进制数位差率