短語詞組短語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 檢測非負減小nonpositive displacement pumps 變量泵 返回 nonpositive