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The first is termed aero-optic and involved optical transmission through aberrating fluid layer whose thickness, L, is smaller than or comparable with the viewing aperture dimension, A, and the turbulence scales, A , are smaller than or the order as the layers thickness:The second category, atmospheric propagation, involved optical transmission through the aberrating medium over very long propagation distance compare with the viewing aperture size, and the turbulent scales of note are generally less than or the same order as the propagation distance:Depending on the atmospheric conditions, for ground-based observatories, wave-front sensor operating at 300HZ can adequately resolved both the important spatial scales and the temporal evolution of the atmospheric-turbulence-induced aberrating wave front over viewing aperture associated with relatively large telescope.

第一类问题光学畸变发生在&近场&较短的光路上，即流层厚度L，光束直径A，以及湍流尺度Λ三者之间存在关系式：ΛA≤L≤A第二类大气传输问题光学畸变则发生在较长的一段光路上，L，A，以及Λ满足： A＜＜Λ≤L对于地基情况下的大气光学传输，300Hz的波前传感器就能实时地测得光波前畸变包括时间、空间频率的相关信息，为我们的自适应光学系统的设计、制造以及进行相关的自适应校正都有着相当重要的指导意义。

The new technique reduced the distance ladder to three "rungs":(1) The distance to galaxy NGC4258 is measured using straightforward geometry and Kepler's laws;(2)Cepheids in six more distant galaxies are used to calibrate the luminosity of Type Ia supernovae;(3) The Hubble constant is measured by observing a brighter milepost marker, Type Ia supernovae, in more distant galaxies hundreds of millions of light-years away, embedded in the expanding universe.

这种新技巧简化了距离跳跃为三个&阶梯&：1、星系NGC 4258的距离采用开普勒定律和简单直接的几何方法精确测量；2、在6个更远的星系中的造父变星用来校准Ia超新星的光度；3、深嵌于数亿光年外的膨胀宇宙中的星系中的Ia超新星——一种遥远而明亮的量天尺，被用于精确测定哈勃常数。

In the world the chilliest beautiful distance is two people originallyis away from very far, mutually is not acquainted with one another,suddenly one day, they are acquainted with one another, fall in love,the distance changes very much near.

世界上最凄美的距离是两个人本来距离很远，互不相识，忽然有一天，他们相识，相爱，距离变得很近。

Based on this, four DBP concentrations(0.38, 0.85, 1.90, 4.25mg·L-1)were confected using the same distance of logarithmic distance, and 20 days' sub-acute toxicity test was carried out. The weights of the liver and gill of B. rerio were measured every 5 days.

在此基础上，等对数浓度差设置4个质量浓度0.38、0.85、1.90、4.25mg·L-1进行20d慢性染毒，期间每5d测定斑马鱼的体重、肝重和鳃重，同时测定斑马鱼肝脏、鳃中SOD酶和ATPase活性。

The distribution of low order images is not continuos in space, the distance between effective images and receiver should be larger than source-receiver distance.

本文对厅堂中声像空间分布的研究指出，接收点上反射声序列的时间分布与其在厅堂中的相对位置及厅堂的体形有关。

The wind can carry a rocket a great distance during its descent by parachute, and from a distance, it really is difficult to judge just how far downrange touchdown occurred.

风，可携带火箭一个伟大的距离，在其后裔的降落伞，从距离，实在是难以判断刚才有多远downrange落地发生。

The assurred operating distance takes into account all the external influences and sample variances and is in the range from 0 % to 72 % of the service usable distance.

经营距离的assurred考虑到所有的外部影响和样本方差，从0％的范围，以72％的服务可用的距离。

Therefore it can adjust the filter factor of the stereo sound according to the distance, thereby no matter the distance from the terminal machine to the user, it can get the same stereo sound effect.

因此能够根据距离对立体音响的过滤系数进行调节，从而使终端机无论与使用者位于什么样的距离，都能够获得相同的立体音响效果。

AC flashover voltage, voltage gradient along the leakage distance and the valid creepage distance of polluted insulators are related to its materials and configuration.

人工污秽绝缘子的闪络电压、污闪电压梯度和有效爬电系数均与其材质和型式有关。

Based on the crossing data among these flatfishes, the relationship between pairwise genetic distance and hybrid fitness was evaluated. The findings indicated that positive relationship might exist between genetic distance and hybrid fitness. The pairwise genetic divergence between species decreased as the interspecific hybrid fitness largened. These results implied that speciation clock might exsit in Pleuronectiformes.

根据这几种鲆鲽鱼的杂交是否可行的试验结果，评价种间遗传距离与杂交可适度的关系，结果表明，这8种鲆鲽鱼类的种间遗传距离与杂交可适度呈显著的负相关(r2 = 0.805，P 0.01)，即种间遗传分化越大，杂交成功的可能性越小，这表明鲆鲽鱼类中可能存在物种进化的不亲和钟。

For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether

年美国个人破产法的一个改动使得破产登记急速下降，而后引起了信用卡大规模的亏损。

Eph. 4:23 And that you be renewed in the spirit of your mind

弗四23 而在你们心思的灵里得以更新