back substitution
短语词组
- double back -substitution 双重回代
- back substitution test 回代检验
- double back substitution [数]双重回代;双重回代
- back substitution detail 倒转代换
- back substitution method 前推回代法
- back substitution coefficient 回代系数
- back substitution process 回代过程
- correct rates of back substitution 回代正确率
- substitution back crossing 替换回交 返回 back substitution