本質(zhì)非負(fù)矩陣 nonnegative matrix: 非負(fù)矩陣essentially non-negative matrix: 本性非負(fù)矩陣essentially positive matrix: 本性正矩陣nonnegative definite matrix: 非負(fù)定矩陣nonnegative matrix number: 非負(fù)矩陣數(shù)下載手機(jī)詞典可隨時(shí)隨地查詞查翻譯