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In vitro, we cultured human and rabbit retinal Müller cells by way of mixed enzyme digestion and tissue adherence, using human retina of an abortus of 6 months and healthy rabbit.

取孕6个月引产胎儿，死后2h内无菌条件下摘取眼球，剥取视网膜组织，混合酶消化法培养人视网膜Müller细胞；取健康新西兰大白兔，死后以最快的速度无菌条件下摘取眼球，组织块贴壁法培养兔视网膜Müller细胞；利用含胎牛血清的高糖DMEM作为培养液，不添加生长因子。

We develop his ideas by finding some algebraic invariants under the adjoint actions of the group in addition to the Killing form and give a rigorous proof of the optimality of the one-parameter systems for the symmetry group of the given equations.

本文系统地研究了1+2维非线性发展方程的对称代数，证明了该方程容许一个七维李点对称群，利用Olver提出的方法，详细地建构了1+2维非线性发展方程的一维最优系统，在此基础上我们发展了他的方法，发现了除Killing型之外的其它六个在群伴随作用下的代数不变量，利用这些不变量证明了该最优系统的最优性。

This method represents the virtual objects in Euclidean space instead of in affine space, which is consistent with the popular graphics rendering tools such as OpenGL and is more common in practice. A new classification based local and global tracking strategy to match features between the reference image and the currently frame directly is presented, which enables the augmented reality system working effectively even under large changes of viewing angles. A novel affine coordinate system definition method based on a collection of feature points is also proposed, which makes the tracking method effective even when not all the reference points are detected during the whole process, as long as there are at least four pairs of reference points correspondences.

该方法以仿射变换为桥梁来建立欧氏空间下的摄像机坐标系与世界坐标系之间的变换关系，它与OpenGL等当前流行的图形渲染工具一致，具有更强的通用性；采用基于分类的自然特征匹配策略，能够在视角和视点发生大幅度变化情况下依然正常工作；提出基于特征点集合的仿射坐标系定义方法，使增强现实系统在最小配置下只需4点追踪成功即可完成注册，比需要6点的透视投影方法具有更好的健壮性和精确性。

This paper concerns the problem of how to purchase the reinsurance in order to make the insurer and the reinsurer's total risk least under the standard deviation calculation principle.

本文在标准差保费计算原理下，同时从原保险人与再保险人双方的角度出发，考虑能使得双方风险波动达到最小的再保险策略，并且得出使得再保险双方的共同风险达到最小的最优再保险策略。

The mission of this International Polar Year project is to uncover secrets of the enigmatic Gamburtsev subglacial mountains that are buried by up to 4 km of ice; to hunt for the oldest ice on our planet; to study subglacial lakes and to discover new clues of past, present and future climate change.

这次国际极地年项目的使命是揭开甘毕采夫冰下山脉的神秘面纱，它被深埋在4公里厚的冰下；搜寻地球上最古老的冰；探索冰下湖并获得过去、现在和将来气候变化的最新线索。

Thus, for three tropical cyclones occurred on different regions, three sets of altimeter-derived data of the sea surface wind and wave are selected, their structural features and relations between the wind and the wave under the influence of the tropical cyclones are analyzed respectively, finally, the most frequent occurring relations between the sea surface wind and the wave of the tropical cyclone over the South China Sea and two hindcast methods for wind field of typhoon based on altimeter-derived wind speed are presented.

据此，选取了高度计获取的3个出现在不同海域的热带气旋影响下的海面风、浪资料，进一步分析各个气旋影响下的海面风、浪结构特征及其关系，并给出了南海海域气旋海况下最可能的海面风、浪关系以及基于高度计风速资料的两种台风风场后报方法。

Considered the different losses from the fail report and misdecaration, the method of debris flow forecast under different losses is set up. This method makes the general average loss of the losses for fail report and misdeclaration to be minimum, and make up for the lower degree of accuracy of debris flow forecast in a certain extent.

本文考虑了泥石流漏报和误报两种错报情况下的不同损失，重点研究不同损失条件下的泥石流预报方法，建立了不同损失条件下的泥石流预报模型，使泥石流预报中错报造成的总平均损失达到最小，在一定程度上弥补了目前泥石流预报准确度较低的不足。

Live specimen of C. latens for the sehll selection experiment preferred the shell type which was the most abundant in the field. But the field specimen did not use the most abundant shell type.

潮间带C。 latens的野外调查资料与实验室情况下的选壳实验比较，显示在选壳实验中寄居蟹最喜好的壳型是野外最多产的壳型，但是与野外最常使用的壳型不同。

He could eat anything, no matter how loathsome or indigestible; and, once eaten, the juices of his stomach extracted the last least particle of nutriment; and his blood carried it to the farthest reaches of his body, building it into the toughest and stoutest of tissues.

无论多么难吃难以消化的东西，他都能吃下；而且一旦吃下去，最后一滴养料都被他的胃吸收掉，然后血液便把营养成份送到他身体的最末梢，造出最坚韧最结实的组织来。

It was found that the fluorescence spectra of the products of MMPB with GSH and with Cys both redshifted from λ〓/λ〓=299/355nm to λ〓/λ〓=305/425nm with the different rate. Under the following conditions: pH=7. 0 〓 buffer, T=35℃ and t=25min, the maximal fluorescence wavelengths were at λ〓/λ〓=299/355nm for MMPB-GSH and λ〓/λ〓=305/425nm for MMPB-Cys, respectively.

在pH=7.0的〓缓冲溶液中和35℃下，MMPB与GSH或Cys反应25min后，生成的MMPB-GSH的荧光峰为λ〓／λ〓=299／355nm，且此波长下的最大荧光强度可以稳定3h；而同样条件下，MMPB-Cys的荧光峰为λ〓／λ〓=305／425nm，且荧光较弱。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。