已知的

We arrange it as follows:In chapter one, we give some explicit constructions of harmonic maps from Lorentz space R1,1 to classical semisimple Lie groups SL,SU Sp, SO by using Darboux transformation, i.e., we may obtain a new parallel transport from a known one via purely algebraic algorithm.

全文共分四章，具体内容如下：第一章利用Darboux变换的方法给出从R~(1，1)到经典实半单Lie群SL，SU，Sp，SO的调和映射的具体构造，即从已知的平行移动Φ_λ通过Darboux变换的方法得到新的平行移动？

If one is not found, the destination is an unknown network device in a known cluster, and the device must choose which network device to use to relay the message to the cluster by some set of arbitration rules.

如果没找到一个人，目的地是在已知的群的一个未知的网络设备，并且使用的网络设备传递消息到群由某一套仲裁统治的设备必须选择。

The slow progress of researches on pulmonary stem cells up to date has its root in the complex structure of pulmonary tissues and respiratory tracts, which is demonstrated by the facts that the respiratory system is composed of at least 40 types of cells, plus that the growth, renewal, and regeneration rate or capacity of respiratory epithelium are extremely limited. Mean while, there have been no specific stem cell markers for pulmonary and lung cancer, so researchers rely on stem cell markers borrowed from other systems to search for stem cells in pulmonary system.

目前对于肺干细胞的研究进展缓慢，究其原因主要是肺组织和气道具有复杂的内在结构，呼吸系统至少包含40种不同类型的细胞，呼吸上皮本身只有极低的生长更新率和非常有限的再生能力，同时肺干细胞的表面标志物也缺乏特异性，只能借助其他组织已知的干细胞标记物进行对比观察。

At last, guided by the theoretical calculation mentioned above, a series of experiments were carried out. The wavefront distortion of a plano concave lens was measured. The total error was less then 8%. This certified the measured results of the interferometer. The wavefront distortion of a one-side pumped zigzag slab gain medium in different pumping power was measured.

最后，在上述理论计算的指导下，进行了一系列波前检测实验：对一个焦距已知的平凹透镜所产生的波前畸变进行了检测，总的测量的误差小于8%，验证了系统测量结果的准确性；测量了一个单侧泵浦的之字形板条增益介质，在不同泵浦功率下的波前畸变情况。

In mathematical that is to say,after obtaining the sampleχ,we may obtain the conditional distribution Hwhen X=χ.

在传统的Bayes估计中，参数λ的先验分布都是已知的，但有时候我们不一定能得到λ的精确的先验分布，于是就产生了新的Bayes估计方法，比如E Bayes估计和多层Bayes估计。

It's the sound of a songwriter at the peak of his ability. Lyrically and melodically, Chris seems to have broken through past constraints. There's a new confidence to venture beyond the limit of the known and comfortable. An urge to explore and discover.

这是一个音乐创作者在自己顶峰时期的创作，无论在歌词还是在旋律方面，貌似Chris都打破了以前的约束，并展现了大胆超越已知的创作局限和乐曲愉悦性的信心，这是一次全新的探索。

Identification of two mutations in CTNS, the only gene known to be associated with cystinosis, is confirmatory.

CTNS基因是唯一已知的与胱氨酸病相关的基因，CTNS基因的两个突变的鉴定是被证实的。

For detecting the vibration frequency the dynamic systems, and using topology contravariant functor the unknown space was mapped to known space,the vibration frequency of unknown space will be investigated by the contravariant functor.

为了分析动力系统振动频率的瞬变性，采用拓扑反变的理论把未知的动力系统空间映射到已知的空间中，通过拓扑反变算子研究未知的空间频率的瞬变性。

The remainder of the smoothed monthly sunspot numbers of cycle 23 is given by using the method, and a comparision of this mthod with the similar cycle method is given as well.A basis for the determination of minimum time of a solar cycle and a basis for the determination of maximum time of a solar cycle are given.

利用已知的22个完整太阳活动周平滑月平均黑子数的记录，给出了对正在进行的太阳活动周发展趋势进行预测的方法，并应用于第23周，同时与其它相似周方法给出的预测结果进行了比较。

A new hexagonal approximant has been found in Al-Cr-Si alloys and its axial lattice parameter follows a τ''s power series τ=(1 √5/2 is the golden number relationship, implying that they are all decagonal approximants. A rule of the icosahedral chains in them has been found.

在Al-Cr-Si合金中发现一种新的六角近似相，它与几个结构已知的六角相的晶格常量呈黄金数τ=(1 √5/2的幂级数关系，说明它们都是十重准晶的近似相，并找出其中二十面体链的规律。

Finally, according to market conditions and market products this article paper analyzes the trends in the development of camera technology, and designs a color night vision camera.

最后根据市场情况和市面上产品的情况分析了摄像机技术的发展趋势，并设计了一款彩色夜视摄像机。

Only person height weeds and the fierce looks stone idles were there.

只有半人深的荒草和龇牙咧嘴的神像。