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物理好图 二次场的时间特征,《电法勘探》教学课件
回答: 惠更斯原理 包围波源的闭合面(波阵面)上任一点的场均可认为是二次波源,它们产生球面子波,闭合面外任一点的场可由闭合面上的场(二次
由 marketreflections
于 2010-11-01 09:13:49
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