短語(yǔ)詞組短語(yǔ)elliptic partial differential operator [數(shù)]橢圓型偏微分算子adjoint partial differential operator [數(shù)]伴隨偏微分算子formal partial differential operator 形式偏微分算子Vector Partial Differential Operator 矢量偏微分算子ellipse partial differential operator 橢圓偏微分算子partial differential operator on manifold 流形上的偏微分算子self -adjoint partial differential operator [數(shù)]自伴偏微分算子 返回 partial differential operator