短語詞組短語locally projectively flat 局部射影平坦locally dual flat 局部對偶平坦locally conformal flat manifold 局部共形平坦流形locally conformally flat 局部共形平坦locally conformal flat metric 局部共形平坦度量locally conformally flat metric 局部共形平坦度量locally convex topology flat 局部平坦的locally flat embedding 局部平坦的嵌入locally flat connection 局部平坦連通 返回 locally flat