短語(yǔ)詞組短語(yǔ)nonpositive coefficient 非正系數(shù)nonpositive coefficients 非正系數(shù)nonpositive operator [數(shù)]非正算子nonpositive form [數(shù)]非正形式nonpositive energy 非正能量partially nonpositive matrix 偏非正矩陣nonpositive definite matrix 非正定矩陣detect fall nonpositive 檢測(cè)非負(fù)減小nonpositive displacement pumps 變量泵 返回 nonpositive