基本解釋[數(shù)學]橢圓型微分算子詞組短語短語elliptic partial differential operator [數(shù)]橢圓型偏微分算子strongly elliptic differential operator 強橢圓微分算子elliptic pseudo -differential operator [數(shù)]橢圓型偽微分算子self -adjoint elliptic differential operator [數(shù)]自伴橢圓型微分算子transversally elliptic left -invariant differential operator 橫截橢圓型左不變算子elliptic differential operator更多詞組專業(yè)釋義數(shù)學橢圓型微分算子