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Neutral differential equations with variable sign coefficients are separatedinto neutral differential equations with positive and negative coefficients bytransformation.According to the characteristic of these equations,a real number setwith supremum is constructed,and sufficient conditions for oscillation of all solutionsto neutral equations with variable sign coefficients are obtained.

通过变换将具有变号系数的中立型微分方程分解为具有正负系数的中立型微分方程；分析具有正负系数中立型微分方程的特征，构造存在上确界的实数集；并对中立型微分方程的解作细致分析，得到了具有变号系数中立型微分方程所有解振动的充分条件。

Agatha and I saw Amy and Tracy turned on the sign boards of Chinese characters of Takuya in the middle of the concert when it got dark completely Amy produced 5 sign boards made of light emitting diodes of the characters Taku Ya Bei Jing and Taku.

天渐渐暗下来了，我跟阿加莎看到Amy跟Tracy举起了闪亮的牌子Amy用发光二极管做了5个牌子，分别是"拓""哉""北""京"和"拓"，在此郑重的感谢AMY/余博士！！

Aimming at the shortcoming in precision measurement of artillery adjusting, a kind of three-ply intersection measurement method based binocular stereo vision is proposed. CCD is used to capture images of the sign object attached on gun barrel, and three-dimensional coordinates is calculated by geometrical projection relation of the sign object image.

针对火炮调炮精度检测中存在的不足，提出了一种基于双目立体视觉的三重交会测量方法，在炮身管上附加球状标志物，利用CCD摄像机获取标志物图像，通过标志物成像的几何投影关系计算球心的三维坐标。

Have second I sign carry out outerly, who are local students comparing to be able to take my most sign one's name, let me feel how the autograph is signed...

有次我在外地签售，当地学生们比着谁能拿到我的最多的签名，让我感觉怎么签都签不完

When you are signed in, you can then sign out by clicking on the "Sign Out" link located at the top-right corner of every page.

当你处于登入状态时，你可以通过点击位于每个页面右上方的"登出"键来完成登出指令。

That had to admit is that I have been influenced by sign of "De Tour France" when design this sign .

不得不承认的是我在设计这个标志的时候受到了环法自行车赛标志的影响。

Sign language recognition is to provide an efficient and accurate mechanism to transcribe sign language into text or speech.

手语识别是通过计算机提供一种有效而准确的机制将手语翻译成文本或语音。

This can be detected using the Chvostek's sign or Trousseau's sign .

这可以通过赫沃斯台科征或特罗索氏征发现。

Goethe always slept during this time; Napoleon did not make any military move; Bismarck did not sign any treaty and even would not sign any documents unharmful to anybody' fundamental interests.

每当这时，歌德总是睡大觉；拿破仑绝不用兵，俾斯麦不签署任何条约，即使是不触动任何人根本利益的文件他也不愿签字。

So the lover of the sun and the seeker of the light will always turn toward the sun, whether it shines from the sign of Aries or gives its bounty from the sign of Cancer, or radiates from Gemini; but the ignorant and uninstructed are lovers of the signs of the zodiac, and enamored and fascinated by the rising-places, and not by the sun.

这样的人总是能够获得真知而不被隔绝于天国的圣阳之外。

The basic concept of FOP can be summarized as to further optimize effective prescription according to the standard of curative effects and with the aid of modern science and technology and theories of traditional Chinese medicine.

其基本内涵可概括为：以确有疗效的中药复方为研究对象，以现代科学技术和传统中医药理论为技术支持，以该复方所治病证的药效响应为评价标准，以优化重组疗效更优的新复方为研究目的。

Ever since our world has been a world, native forests have been indiscriminately exploited by man.

自从我们的世界一直是世界原生森林被任意剥削人。