| 释义 |
逆运算nìyùnsuàn在一个等式中,用相反的运算方法,从得数求出原式中某一个数的方法。如在2＋4=6的等式中,可以用减号由得数6求出该式中的加数2或加数4。{inversion operation; reciprocal operation; use of an inverted method in an equation to derive a certain number from the result. For example, in the equation 2＋4=6, a subtraction sign may be employed to derive the addend 2 or 4 from the result 6.} |