短語詞組短語singular boundary integral 邊界奇異積分singular r integral 奇異積分hyper -singular boundary integral equation 超奇邊界積分方程singular integral equation [數(shù)]奇異積分方程;奇異積分方程singular integral operator 奇異積分算子nearly singular integral 近奇異積分high order singular integral 高堦奇異積分的higher singular integral 高堦奇異積分 返回 singular integral