何时

When does a difference engine become the search for turth?

判别差异的脑袋何时改而追求真理？

Sudden Light Dante Gabriel Rossett I have been here before, But when or how I cannot tell: I know the grass beyond the door, The sweet keen smell, The sighing sound, the lights around the shore.

顿悟 但丁·加布里埃尔·罗塞蒂我一定到过此地，何时，何因，却不知详。只记得门外草依依，阵阵甜香，围绕岸边的闪光，海的叹息。

Sudden Light Dante Gabriel RossettI have been here before,But when or how I cannot tell:I know the grass beyond the door,The sweet keen smell, The sighing sound, the lights around the shore.

顿悟但丁·加布里埃尔·罗塞蒂我一定到过此地，何时，何因，却不知详。只记得门外草依依，阵阵甜香，围绕岸边的闪光，海的叹息。

Open computer, flow in sound box drip the new song that those who go out is Fan Weiqi " the distance of a heart ", libretto carelessness is two people that love each other go together finally, after-thought rises in order to head for a thing always total sweet occasion, can't help wanting to talk together with everybody today, serve as stationmaster we, when can be after oneself are successful sweet memory before a variety of hardships.

一打开电脑，音箱里流淌出的是范玮琪的新歌《一颗心的距离》，歌词大意是两个相爱的人最后走在一起，回想起以前往事总总的温馨场面，不禁今天想和大家一起谈谈，作为站长的我们，何时能够在自己成功后甜蜜的回忆以往的种种艰辛。

In contrast, for the newly stabilized sand dune, the annual plant will consume more resource and energy for nutrition development in order to cope with the harsh environment.

此后，众多的生态学家将繁殖对策作为生活史进化的重点来研究，试图回答动植物在不同的环境条件下何时繁殖，产生

Only with such characteristics, the movement equations can be expressed as matrices, and the idea of transforming the movement equations to the simplest form through a nonlinear transformation can be realized;(2) The form of Zi =Yi + YTH2i Y + Y7H3i Y(2)+ Y(2)T H4i Y(2)+ YTH5i Y(3) is adhibited in the nonlinear transformation, so that the multivalued problem caused by the nonlinear transformation is avoided, and the higher order transformation can be taken next;(3) The fourth order nonlinear transformation matrices H21,H31,H41 and H51 are derived, by which the original movement equations of electric power system is transformed to Jodan form in Z space;(4) By use of the fourth order nonlinear transformation, the approximate expression of the stability boundary is obtained, in Z space it is Z1= 0,in Y space it is Y1 + YTH21 Y + YTH31 Y(2)-i- Y(2) TH41 Y(2)+YTH51 Y(3)= 0;(5) The criterion used in this paper to judge whether the system critical unstable is simple and quick;(6) The method used in this paper is a direct method, and no need to construct an energy function.

正是由 于电力系统的运动方程具有这样的特性，才能写成矩阵的形式，通过非线性变换将电力系统的运动方程变换为最简单的线性形式的思想才能得以实现；（2）将通常运用于电力系统暂态稳定性分析的Normal Form变换的形式由 Yi＝ Zi＋ ZTh2riZ变形为 Zi＝ Yi＋YTH2iY＋YTH3iY（2）＋Y（2）TH4iY（2）＋YTH5iY（3），从而使得在对持续故障轨线实施同样的非线性变换以确定临界切除时间时，避免了非线性变换带来的多值性的问题，而只有在没有多值性问题的困扰下，才能采用较高阶的变换：（3）推导出了将原始电力系统系统的运动方程变换到Z空间的约当形式的非线性变换矩阵H21、H31、H41、HS1：（4）在运用四阶了「线性变换的情况下，给出了受扰动后系统的稳定边界的近似的解析表达，在Z空间为Z1=0，在y空间为： Y1+YTH21Y+YTH31Y(2)+Y(2)TH41Y(2)+YTH51Y(3)=0 （5）确定临界失稳的判据简单、快捷：对于一个复杂的电力系统，其稳定边界是相当复杂的一个高维曲面，即便是已知系统稳定边界的解析表达，要求出系统持续故障轨线何时与这一高维曲面相交，在数学上几乎是不可能实现的。

There is still a matter of links, and when/how to convert them to query archived pages.

还有一个环节的问题，以及何时/如何将它们转换为存档的网页查询。

Reichte noch vor wenigen Jahren ein dreifacher Zoom-Bereich vllig aus, so muss es heute schon ein 10- oder 12-fach-Zoom sein, damit alles zwischen Kircheninnenrumen und vertrumten Badenixen mit aufs Chip kommt - und damit man noch wei, wo und wann alles passierte, hat die Panasonic DMC-TZ10 nicht nur das tolle Zoom an Bord, sondern auch noch einen GPS-Empfnger.

尚未完全足够了几年三重变焦范围，它现在必须是一个 10 -或12倍放大了，所以一切与教会内部和梦幻般的美人鱼与 aufs芯片与未来-所以你记得何时何地一切都发生时，松下DMC - TZ10不仅有伟大的放大板，而且是全球定位系统接收器。

I don't know that how many autumns he can spend yet,I only know that:Whenever my grandfather's kind face always appears in my brain.Wherever I go,I will miss him.

我不知道他还能度过多少个秋天，我只知道：在我的脑海里，无论何时都会出现爷爷慈祥的面容，不论我走到哪里，我都会想念他。

This can be helpful for you players so you will know when the time to fish which basses is.

这可以帮助您做球员的时候，你就会知道何时是鱼男低音。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。