[數(shù)] 偽度量左不變量 two-sided invariant pseudometric: 雙不變偽度量left invariant: 左不變式pseudometric: 半度量; 偽度量left invariant mean: 左不變平均值left invariant measure: 左不變測(cè)度下載手機(jī)詞典可隨時(shí)隨地查詞查翻譯