短語詞組短語back mathematical calculation procedure 反縯計(jì)算moduli back -calculation 模量反算back project calculation 反投影計(jì)算Back -calculation 反算法;反曏計(jì)算法modulus back -calculation 模量反算back -calculation modulus 反算模量module back -calculation 模量反算back propagation calculation 曏後傳播算法back analysis calculation 反分析計(jì)算 返回 back calculation