英语词汇finite difference expression怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	finite difference expression
释义	finite difference expression 简明释义有限差分表示式网络释义短语 1 finite difference expression 有限差分表示式 ; 有限差分表达式双语例句 1 The equations are solved by finite difference method and the mean and variance of pressure head are determined from its random expression. 通过摄动方法得到一系列关于水头展开式的偏微分方程，用有限差分法进行求解，获得了压力水头的随机描述，并计算其均值和方差。 2 The finite difference depth migration equation in space-frequency domain can be derived when the radical expression is approximated by continued fraction. 采用连分式近似，可以得到空间频率域的有限差分深度偏移方程。
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