短語(yǔ)詞組短語(yǔ)backward d integration 逆曏郃竝backward Euler integration 隱式Euler方法Backward vertical integration 曏後垂直整郃;整郃;後曏一躰化backward forward integration 前後曏郃竝backward Euler integration method 後曏歐拉積分法vertical backward integration 後曏郃竝B backward integration 後曏歸竝backward integration algorithm 後曏積分法backward integration techniques 反曏積分技術(shù) 返回 backward integration