本文提出的这种方法，它的特点在于：我们不是用牛顿迭代法去直接逼近方程的根，而是用牛顿迭代法去逼近方程的二次因子。
The method presented in this paper is not to approximate directly with Newton iterate the roots of a polynomial but to approximate its second order factors.
由此方法还可得到稳定的、具有普遍意义的注入元素在基体中的二次离子相对灵敏度因子。
Meanwhile, relative sensitive factor of secondary ion of implanted element can be obtained by this method.
与其它方法相比，NURBS方法引入权因子后能精确描述二次曲线，并被工程技术所采用，但存在几何特征不够直观的缺点。
In contrast to other methods, method of NURBS with weights can describe quadratic curve accurately and can be adopted by technology of engineer, but its geometrical characteristics was not obvious.
影响能见度的空气污染因子，不仅包括一次源，还应包括经由气-粒转化化学反应而产生的硫酸盐、硝酸盐等二次污染粒子。
Air pollution factors include sulfate or nitrate second particles derived from gas-to-particle transformation as well as original particles.
二次离子污染是影响厦门环境空气质量的主要因子。
The pollution of secondary ions is the major influence factor for Xiaman air quality.
二次侧压增大，渗透通量和分离因子减小。
The permeation rate and separation factor decrease while increasing downstream pressure.
主要讨论了二次整环的单位、素元、因子分解、二次整环的剩余类环的性质等问题。
It mainly discusses units, prime elements, factorization, the properties of residue class ring of quadratic domain in the paper.
为了提高分辨率，可采用重力场的二次导数曲线作滤波因子。
The second derivative curve of the gravity field can be used as filtering factor so as to improve resolution.
基流二次切变对于中尺度对称扰动来说是一个不稳定因子，并且驱动不稳定的中尺度对称扰动在南北方向传播；
The second-order shear of the basic flow represents an instable factor for the symmetric disturbance, and drives the unstable mesoscale disturbance to travel in the meridional direction;
采用三因素五水平二次回归正交旋转组合设计，研究玉米品种、密度、施肥措施对西昌地区玉米产量形成的作用效应，建立回归模型并分析各因子的作用规律。
Quadratic orthogonal regressive rotation design of three factors is applied to study the effect of varieties, density and fertilization to maize yield in Xichang ecological area.
分别采用线性属性函数、二次属性函数以及加入光源因子的属性函数进行仿真。
A linear attribute function, a quadratic attribute function and an attribute function combined with light source are used to simulate the effects of aerial perspective.
米林顿算法是国际上比较常用的预测罗兰C信号场强和附加二次相位因子（ASF）的算法。
Millington's method is generally used for forecasting the field strength and ASF of Loran C signal.
通过对正常和攻击样本的聚类分析，定义聚类簇中心的边界面接近度因子，实现对标准SVM二次式的改进；
Based on clustering normal and attack training samples, by defining approaching degree of boundary surface of every clustering center, quadratic expression of standard SVM is improved;
采用四因子二次通用旋转组合设计，结合大田调查与土壤肥力测试，于1994～1996年在浮山县张庄乡，对特大干旱年旱地冬小麦的施肥效应及需肥特点进行了研究。
Effect of fertilizers on rain fed winter wheat and its requirement characters in an extremely desiccative year were studied in 1994~ 1996 by using regression design and field investigation.
第二 部份乃利用德尔菲（Delphi）技巧，采取二次问卷回馈的方式建立海堤 视觉景观评估因子。
The second step is to choose available evaluation factors for seawalls by using Delphi technique and a second questionnaire.
第二 部份乃利用德尔菲（Delphi）技巧，采取二次问卷回馈的方式建立海堤 视觉景观评估因子。
The second step is to choose available evaluation factors for seawalls by using Delphi technique and a second questionnaire.
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