根出的

It is discussed that the methods of discrimination of the stability of the singular point of nonlinear autonomous system by using of eigenvalue,center manifold and Liapunov function .

给出了利用特征根、中心流形和李雅普诺夫函数判断非线性自治系统奇点稳定性的方法。

All at once, a man on horseback, clad in black, made his appearance in the middle of the group with a red flag, others say, with a pike surmounted with a red liberty-cap.

突然有个穿黑衣骑在马上的人出现在人群中，手里擎着一面红旗，有些人说是一根长矛，矛尖顶着一顶红帽子。拉斐德转过头来。

Who knows whether the peeler will been needle? I can try it, I waiting use it embroider a polychrome picture of my life.

怀疑"铁棒磨成针"的谚语，可是又在想，或许我应该试试，所以今天我要开始挥舞这根铁椎，希望有一天它能变成绣花针，绣出一副多彩的人生。

When you're too dumb to play anything," the professor conducting us sneered,"they give you a couple of sticks, put you in the back and call you a percussionist.

当你愚蠢到什么都演奏不出来时"，正在指挥我们演奏的教授嘲笑说，"他们就给你一、两根棒棒，然后把你放到后面，把你称为打击乐手。

The father said, and now whenever he can begin to control their own temper when a nail on the pull-out.

父亲又说，现在开始每当他能控制自己脾气的时候，就拔出一根钉子。

Find the roots of a quadratic equation.

找出二次方程式的根。

Given a quadratic equation ax2+bx+c=0, input a, b, c and find out the 2 roots of equation.

现有二次方程式，ax2+bx+c=0，输入a， b， c 并找出这方程式的两个根。

There is red liquid coming out with each quill pulled.

每拔掉一根，就会有红色的液体留出。

This picture was taken to show the shallow root system of the redwoods.

这张照片是要表现出红木的浅根系统。

Their best addition quantity in NBB culture medium was determined as malt rootlet extract 50 mg/L, arginine 0.75 g/L and folic acid 140 mg/L.

NBB培养基的最佳添加量为麦根浸出物50mg/L、精氨酸0.75g/L、叶酸140mg/L。

Fancy gold-plated dangling earrings with facetted White Opal crystals.

花式镀金悬垂耳环与facetted白欧泊水晶。

This essay chooses the study aim from biology teachers in middle school in Shi Jiazhuang which tells us that most of the middle school biology teachers in Shi Jiazhuang have the"burnout", lower successfulness, individualize.

本文选取石家庄市初中生物教师作为研究对象，运用问卷调查的方法对石家庄市初中生物教师职业倦怠的现状进行调查，调查结果发现，石家庄市初中生物教师这一群体普遍存在职业倦怠，情感枯竭程度偏高，成就感偏低，去个性化程度最为严重。