The results from Spatial simultaneous equations between productivity and R D from Multinational companies in China show that R D spillovers from Multinational companies by neighboring areas has positive spillover effects on productivity.

1、

The experiment proves that simultaneous equations method applies to quantitative X-ray diffraction phase analysis of geologic samples.

本实验证明联立方程法能应用于地质样品的X射线衍射的定量相分析。

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2、

By four, her natural aptitude for maths had seen the eager student move on to algebra and quadratic equations.

这位求知欲旺盛的学生，4岁时已经学习代数和二次方程了，她的数学天赋崭露无疑。

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3、

When the pesticides were applied with rice-hull carrier the dynamics of residual degradation exprespse as two exponential equation reaction.

采用砻糠载体法施药，在粮食内残留消解动态呈二次方程反应。

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4、

The methods of determining a spinning angle of the coordinate axes for standardizing a general quadratic equation elliptic revolution

用旋转坐标轴的方法证明中值定理二次方程化简中坐标轴旋转角的确定问题

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5、

This program calculates the root ( s) of the quadratic equation with very common and simple algorithms.

这个程序能用非常普通和简单的算法来计算一个二次方程的根。

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6、

A high-efficient and fast line-clipping algorithm for circle clip window based on hexagonal grid is given.

在求交点时避免了解算二次方程，最后提出了这种高效的、快速的基于六角网格的圆形窗口的裁剪算法。

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7、

Problems on Quadric Equations in Chinese Ancient Mathematics

古算中的一类二次方程问题

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8、

Some quadratic equations have no real roots.

某些二次方程没有实数根。

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9、

A Class of Singularly Perturbed Problems of Second Degree Equations with Boundary Perturbation

具有边界摄动的二次方程奇摄动问题

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10、

Do I look like someone who knows quadratic equations?

我看上去像知道二次方程的人吗？

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11、

The existence of limit cycles for a class of planar quadratic equations

一类平面二次方程的极限环存在性

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12、

Quadratic-Based Computation of Four-Impulse Optimal Rendezvous between Near Circular Orbits

基于二次方程组的邻近圆轨道四冲量最优交会

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13、

You will get two solutions; it's a quadratic equation.

得到两个解；，这是二次方程。

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14、

Analogue Computation of Cable Fault Location Based on Quadratic Equation Method

利用解二次方程法的故障测距仿真计算

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15、

Real Coefficient Quadratic Equations Formula of Root on Real Commutative Algebra

交换代数中二次方程的求根公式

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16、

The responsive curves of photosynthesis in mature cherry leaves to the change of photosynthetic active radiation, CO2 concentration and air temperature can be described with quadratic equations, the specific shape of the curves varied with cherry varieties and the ecological factors concened.

樱桃光合作用对光照强度、CO2浓度和温度等单一生态因子水平变化的响应行为均可以用二次方程来描述；响应曲线的具体形状因品种和生态因子种类而异。

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17、

Aiming at problems of solving multiple quadratic equation systems, the redundancy of extending equations by Extended Linearization ( XL) algorithm is analyzed.

针对多变量二次方程组的求解问题，对XL算法的冗余性进行分析与改进。

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18、

After that, the dissertation proposed a new voltage stability index LSI ( Line Stability Index) based on branch power flow. It is proposed by using the discriminant of the quadratic of voltage.

然后基于支路潮流分析，由电压的二次方程有解条件提出了一种电压稳定指标&LSI（Line Stability Index）。

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19、

It's a second-order equation in x, and is a parabola and a parabola has this shape.

这是一个x的二次方程，也是一个抛物线方程式，抛物线都长这样。

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20、

GFR was estimated by2 methods: the Modification of Diet in Renal Disease and the Mayo Clinic quadratic equation.

通过2种方法对GFR进行估算：肾脏疾病饮食修正方程和梅约医疗中心二次方程。

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