在这点上

Applyingthe sufficient and necessary condition of biquadratic Bézier patch being non-negative,a method is presented to see whether two points are the closest points between twobiquadratic NURBS surfaces when the two points are respectively on the two surfaces. Based on the method, the surface split algorithm is improved while the surfaces arebiquadratic NURBS surfaces.

本文利用双二次 Bézier 曲面为非负的充要条件，提出了分别位于两张双二次 NURBS 曲面上的点是否为这两张曲面间距离最近的点的判别方法，并由此在双二次 NURBS 曲面的场合对计算最短距离的曲面分割法作了改进。

In this paper, according to the characteristics of central projection, aerial photograph s were analyzed to discuss displacement of images under tilt conditin or caused by ground undulation, based on which the principles of tilt error and projection error were summarized.

本文以航空摄影测量像片为分析对象。根据中心投影的特性，论述了像片在倾斜条件下所引起的像点位移和像片因地面起伏而引起的像点位移，在对其进行分析的基础上总结出倾斜误差和投影误差的规律，从而说明了不能把像片当作地形图使用。这是使用航空像片时必须注意的基本问

Respecting this, zhang Guanxi's engineer takes goblet quaff, rely on on the chair to continue respecting: Baidu has 3 big competitors at present: It is Gu Ge, it is Tecent, it is the portal station; such as sina, Netease among them cereal song nip is giant capital and top technology actual strength, whole break down Yahoo after this is only dinosaurian, it is at the summit of one's power more, together with is familiar with Chinese to search a field gradually, hold concurrently with Adsense draw over the heart of the world stationmaster, discharge day is tall, except Baidu has powerful support in respect of governmental public relations, lose; of city lost territory already and Tecent, have the user group of nearly 200 million, the horse changes Teng Qian to reside Shenzhen, be covetous on searchs engine this cake is long already; another competitors namely each big door station, root deep tree is tall, more development searchs the criminal record of engine, all along also is to peep the; together with that search index props up this cup of a thick soup Baidu appears on the market now, capital drive technology, baidu now is must nod wildly, for discharge insanity, for silver insanity, you these careless root stationmaster are the act that understands Baidu very hard.

说到这，张冠西工程师拿起酒杯一饮而尽，靠在椅子上继续说到：百度目前有三大竞争对手：一是谷歌，一是腾讯，一是新浪、网易等门户站；其中谷歌挟庞大资金及顶尖技术实力，整垮掉雅虎这只恐龙后，更是如日中天，加之渐渐熟悉中文搜索领域，兼用adsense笼络了天下站长之心，流量日高，若不是百度在政府公关方面有强大支持，早已丢城失地；而腾讯，有近2亿的用户群体，马化腾潜居深圳，觊觎搜索引擎这块蛋糕已久；另外的竞争对手即各大门户站，根深树高，并多有开发搜索引擎之前科，向来也是偷窥搜索引擎这杯羹的；加之现在百度上市，资本驱动技术，百度现在是不得不疯狂点，为流量疯狂，为银子疯狂，你们这些草根站长是很难了解百度的举动的。

Xiang Guohua's works are not Chinese traditional paintings according to his two kinds of material, one is the typical western art form, that is, oil painting, and the other is a kind of synthetical, either to brand a series of holes with burning incense through a piece of leatherette, or to make it on acrylic Plexiglas. The latter two materials appeared in his works successively.

向国华的作品不是国画，在材料上运用两种形式，一种是典型的西方艺术形式，即油画，另一种则是综合材料，或在皮纸上用香烫出点的轨迹，或在亚克力板上完成这一工作。

Simultaneity, the adsorption energies of single Si adatom on the H-terminated Si (100) surfaces are specially mapped out in this paper, from which the favorite binding sites and possible diffusion pathways have been achieved. The variety of the diffusion anisotropy with the coverage transforming is obtained. The energy barriers of the adatom diffusion are found to be higher than that on the clean surface, because the H atoms saturate the dangling bonds of the surface Si atoms.

同时，本文研究了附加硅原子在理想H-terminated Si(100)表面的沉积扩散行为，计算得到了一系列沉积点和可能的扩散路径；讨论分析了扩散行为的各向异性以及氢覆盖率对各向异性影响的规律，并且发现附加硅原子在H-terminated Si(100)表面上的扩散势垒比在清洁Si(100)表面上的高，我们认为这主要是因为氢原子饱和了表面上硅原子的悬挂键，提高了扩散势垒。

Nowadays most of researches on the multicast routing are how to generate multicast tree. In case of multicast tree failure, there need to re-route all of nodes behind the failure point so much as re-build the whole tree, this will deteriorate Quality-of-Service, on the other hand, it is insufferable in some multicast applications. We proposed a Fault-Tolerant multicast scheme to resolve this problem. Our scheme creates backup paths crosswise in the ramose node. It can reduce additional cost greatly and recover the failure of multicast tree rapidly.

现在关于多播路由的研究大多著眼于多播树的生成，一旦多播树出现故障，就需要对故障点以下的所有多播接收节点进行重新路由甚至对整个多播树进行重新构造，这一方面降低了服务质量，另一方面有些多播应用不允许长时间的中断，对此本文提出了一种多播容错方案，采用在分枝节点之间建立备份路径的措施，可以在很大程度上减少额外的代价，能够在最快的时间内恢复多播树的故障，并使得恢复后的多播树形状基本上没有改变。

The existing image matching methods work well in open areas with relatively smooth terrain. However, they still meet many problems in the case of larger scale images of nature, especially in the dense city centers, forestry areas and the textureless regions such as water bodies. The reliability of image matching is still a big issue in these cases. For example, the corners of buildings and some object boundary points sometimes cannot be matched successfully, and there are many blunders in the automatically derived digital surface models that need to be manually removed, which leads to the decrease of the automaticity in digital photogrammetry.

现有大多数立体影像匹配方法对于地形平滑的开阔地带具有较高的可靠性，然而，面对从千变万化的自然界所摄取的影像，现有的匹配方法仍然存在许多问题，尤其是在植被茂密、建筑物密集和水域等区域，影像匹配的可靠性还不高，一些建筑物的角点和地物的主要边界点还不能正确地匹配出来，自动生成的数字表面模型中存在着许多异常值，需要进行大量的人工编辑处理，这在很大程度上制约了数字摄影测量自动化水平的提高。

G. it is up to 80 eV when the cluster plane is parallel to the surface. In addition, the impact induced adsorption of C〓 cages was studied in detail. After impacting, the normal incident C〓 was found to move laterally on the surface due to the anisotropic interaction between the dimerized surface and the cage. Finally, it resided on the top of a dimmer or in the trough, which are the energy favored adsorption sites.

在能量为10-20eV的C〓富勒烯表面吸附动力学过程的研究中，我们还发现表面结构的不对称性会引起团簇-表面相互作用的各向异性，从而导致入射团簇在表面上有与入射方向垂直的的横向运动，最后吸附在两个二聚体的中心点和谷点，这两个位置是能量最低的的吸附组态。

Can modify whole station program namely at most, 2007, I did my individual website, content of it doesn't matter, the page is simple, do not have discharge at all, because do not have time, also not was in charge of a website all the time, 08 year arrived, I have enough time bubble to be on the net, begin to care the station that has me to come, made the best of time to arrange the website one time, made some of self-help chain, sent dot rubbish to stick promotion to other forum, ah, do not see effect, wander in a few Ip everyday, really pained, the night of Yuanxiao, a person is dull, net of all night on preparation, admire to comparative on the net according to the door in the discovery on the net innocently fire, I had not heard of this thing before, do not follow to go up tide, do not have method ~~, one is searched on the net, stick in Baidu good found a few pieces of relevant pictures not easily, ah, stick to my forum immediately.

顶多就是能修改一下整站程序，2007年，我做了我的个人网站，没什么内容，页面简单，根本没流量，由于没时间，也就一直没管网站，08 年到了，我有充足的时间泡在网上，开始关心起我的站来，抓紧时间把网站整理了一番，做了些自助链，到其他论坛发了点垃圾贴推广，呵呵，不见成效，天天徘徊在几十个ip，真是苦恼，元宵之夜，一个人无聊，预备上通宵网，无意在网上发现&艳照门&在网上相当火，之前我还没听说这事，跟不上潮流，没办法~~，在网上搜索了一把，在百度贴吧好不轻易找到了几张相关图片，呵呵，马上贴到我的论坛上。

Appearance, Founder R620 (VUR620-490) the default shell for the gray-black, but the other color version for you to choose, and this color version and the color is different from fixed-site market, the notebook, but can be as cell phones, for the superstructure onto the "red, yellow and black" colors, such as the "color coat", you can purchase this when coupled with the money, the color of all colors are income capsule daily notebooks and changed the color of heart, personalized fashion show!

外观上，方正 R620(VUR620-490)默认的外壳为灰黑色，但另有彩壳版本可供大家选择，而且这彩壳版并不同于市面上的彩色固定上盖笔记本，而是可以象手机一样，为上盖套上&红，黄，黑&等颜色的&彩壳外衣&，大家在购本时完全可以再加点钱，将所有颜色的彩壳都收入囊中，每天笔记本的颜色随心而变，尽显时尚个性！

She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了，但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

要是在劳改农场，你等着挨绳子吧！