nonpositive coefficient非正系数
nonpositive coefficients非正系数
nonpositive operator[数] 非正算子
nonpositive form[数] 非正形式
nonpositive energy非正能量
partially nonpositive matrix偏非正矩阵
nonpositive definite matrix非正定矩阵
detect fall nonpositive检测非负减小
nonpositive displacement pumps变量泵