二次因子 meaning in Chinese

second-order factor
secondary factor

The experimental results show that these two algorithms are efficient and computational complexity is low . ( 2 ) we prove that necessary and sufficient conditions for bounded and closed ip curves are that second - degree polynomial factor curves in the leading binomial product v abstract decomposed from the leading form of [ p are ellipses
（ 2 ）证明了隐含多项式曲线封闭有界的条件是隐含多项式分解的首二次因子积中的二次因子曲线是椭圆曲线，并给出了避免隐含多项式曲线自相交的条件。
( 4 ) we prove that shapes of ellipses obtained from the leading binomial of [ p are independent of the decomposing methods , and two ellipse equations removing their constants satisfy the same relation of transformation as two [ p curves under the perspective transformation
（ 4 ）证明了隐含多项式分解的首二次因子积所对应椭圆曲线的形状与分解的方摘要法无关。如果两条隐含多项式曲线满足透射变换关系，那么它们首二次因子积中的椭圆曲线方程去除常数项后也满足这种变换关系。