双极的

The special geometric restrictions like parallelism andperpendicularity implicated in vanishing elements are deeply studied. In single-view case,the theory is presented to interpret relationship between two planar lines by applying 3Dinvariants of vanishing points. In two-view case, the method on extraction vanishing pointof an arbitrary spatial line is described, and moreover, the theory is presented to interpretrelationship between two elements in 3D space, such as two lines, two planes, line andplane, and so on.

4详细论述了消失元素(消失点、消失直线、消失平面等)所体现的垂直、平行等特殊几何约束关系；对单视图，提出了一种利用消失点列的3D不变量解释平面直线关系的方法；对双视图，提出了利用自共轭三角形和对极几何约束，提取任意直线的消失点的算法，并在此基础了提出了一种利用消失元素的3D不变量解释直线间、直线与平面间、平面间等多种空间几何关系的方法。

With the fantabulous pull-down and angled shot which made his favourite goal - the one completed his hat-trick - at Leicester City in the first Double-winning season of 1998; perhaps with the exquisitely balletic ball-goes-thisaway, I-go-thataway pirouette past Newcastle's defence in 2002, arguably the most divinely intuitive goal ever seen in English football.

随着他那极棒的卸球和小角度射门，那是他最喜欢的进球——1998年阿森纳双冠那个赛季对莱斯特的比赛，他帽子戏法的最后一球；或许随着他2002年渗透纽卡斯尔防线的像芭蕾般精致的那个球走这边、我走那边的旋转入球，这球或许也是英格兰足球看到的最像神迹一样的灵感入球。

They have very intensive optical nonlinear effect, high birefringence, fantastic dispersion, ceaseless single mode transmission characteristic and dreamlike performance parameters. They can be used to form lasers with higher average power or peak value power. In a word they are the instruments that can rein the photon imaginably! Various theories and numerical analyzing methods of the photonic crystal fiber laser have been listed.

研究了有望构成更高平均功率连续激光器或更高峰值功率脉冲激光器的新材料——光子晶体光纤，介绍了其拉制方法，说明光子晶体光纤具有极强的光学非线性效应、高的双折射特性、奇异的色散特性和永无截止的单模传输特性等各项新颖奇特而且优异的性能指标，一句话，就是它是最有可能拥有完美的驾驭光子的能力的器件！

Transcriptional activity of ACL recombinants normalized by Renilla was significant difference with pGL3-Basic expect for construct -27 and -15 (P＜0.01). Construct -919 contains highest activity. 3 times reduction of transcriptional activity from-919 to -679bp indicated that negative regulation factors located probably in this region. The activity started on construct -73 suggested the basal promoter activity was located within the -73 to +77bp region; Transcriptional activity of IDHβrecombinants was not significantly different between the recombinant -58 and pGL3-Basic. The activity started on construct -82, decreasing with the length of the fragment up to -164 in despite of a bit of fluctuation, and kept increasing from construct -164 up to -279. Thus, the basal promoter activity was located within the -82 to +16bp region, whereas the upstream 197bp conferred maximal transcriptional activity.

采用5'端缺失策略，结合启动子预测结果，分别构建了8个ACL基因和19个IDH3β基因启动子区重组子，将其转染猪PK15细胞系，并利用荧光素酶双报告基因系统检测了它们的活性，结果表明：在所构建的猪ACL基因5侧翼序列的8个重组子中，除pGL-ACL27和pGL-ACL15外，其它重组子的荧光素酶活性与阴性对照均达到极显著水平(P＜0.01)，表明它们均具有启动子活性，pGL-ACL919活性最强，到pGL-ACL679活性下降了将近3倍，说明从-919bp到-679bp区域可能存在负的调控位点，从pGL-ACL621到pGL-ACL73活性有小幅度下降，到pGL-ACL27活性降到与阴性对照水平无显著差异，表明维持该启动子的基本活性区域位于-73bp到+77bp之间；IDH3β基因启动子活性开始于pGL-IB82，然后虽然有些波动，但是活性一直下降直到-164bp处，之后活性又开始升高，直到-279bp处活性达到最高，这些表明维持该启动子的基本活性区域位于-82bp到+16bp之间，从-82到-279之间的179bp区域具有最高的启动子活性。

When in senior high school ,it left behind so many regret for me,at first,for the junior high school failure exam,I went to a unliked school to continue my student time,at the same time ,I also left dad's words to behind my head,everyday,I just look at the surrounding teachers and classmates ,I can't adapt me into that serious atmosphere ,more serious it that I more hated that environment ,in order to avoid it ,I started to skip classes ,as the time of skiping classes grew,some teachers and classmates began to think me as a bad student,honestly,in that school,there were so many this kind guys,however,it seemed to me that all teachers just had a couple eyes of caring of me .subsequently,in order to go on my studying,I had to make some promise of it for teachers,as a matter of fact ,I wrote it fully and also read it to the class.at the bottom of my hear,I apparently had the feeling that would like to stay to the class to keep my normal studying,but everytime,it seemed that something was not under my controul.but just now for me ,it may be just a little depressed.so that written guarantee didn't take some effect for me,as usual ,I also choosed to skip classes,at last ,related teachers had to call for my dad to school and required him to write some words to promise something in order to keep me in school ,at that momment,I refused all ,I can' t eudure dad do it as so.

上高中了，是我这辈子遗憾最多的日子。起先，在那所我极不愿去的学校里，我没有记住爸爸的话，看着身边的老师、同学，都找不着感觉，并且越来越讨厌那种环境，后来干脆开始逃课。逃课的日子多了，就成了老师眼中的坏孩子，其实在那所学校里逃课的学生多的是，但是老师好象长了一双只可以看到我逃课的眼睛。后来，老师要我来写保证书，保证我以后不再逃课，否则就走人。我写了，并且在班上念了。因为从心里我是真的想读书，可是每次总是管不住自己，有一种想逃走的感觉。现在想来，我那时应该是或多或少有些郁忧症了。所以保证书过后，我又逃课时，老师叫来了我的爸爸，并且要求爸爸写保证书，保证我以后不再逃课，而且要当着班上的同学念。我马上拒绝了，只说了句：&我自己走吧。&

In the early stages of developing what was to become the famous Bullet Time sequence, visual effects supervisor John Gaeta and director of photography Bill Pope constructed many gimbals and dollies in the hope of creating the effect the old fashioned way.

在发展&子弹冻结&拍摄的早期，该片的特技总监约翰。盖塔和摄影比尔。坡普建造了由平衡环和双立柱构成的轨道，希望用这种老式的方法，用极高的速度把摄像机转着演员转动一圈以得到预期的效果。

With this dedicated base ring, we succeeded in constructing the EAST, which generates the steady, very long wavelength pulsed plasma, and which realizes the operation of double-null, high-beta plasma as well as single-null plasma at full current.

介绍变形及装配等带来的不满足精度要求将带来的后果。在后续的实验中成功验证基准环的设计，获得稳态的、极长的长脉冲等离子体，并实现全电流下的双零高β和单零高等离子体的运行实验。

The application of the alloy that can effectively reduce the release of hydrogen, the special technique in manufacturing grid, and the appropriate match of active materials of both negative plates and positive plates, all these enable spiral valve-regulated sealed lead-acid battery, greatly restrain the release of hydrogen from negative plates, at the same time the generated oxygen, due to overcharge of positive plates, arrive at negative plates through the diaphragm and compose with lead in the negative, thus enable the recombination of gas inside of the battery and prevent the case of water loss so that water addition is free.

双登卷绕式阀控密封铅酸蓄电池通过采用具有极高析氢过电位的合金通过特殊工艺制造板栅，同时对正负极活性物质量的合理匹配等工艺措施，使得负极上发生的析氢过程得以最大限度地受到抑制，同时正极因过充电所产生的氧气通过隔膜到达负极，并与负极上的铅发生反应，生成水，这样便使得电池内部气体的再复合，防止失水，实现免维护。

Apply to industrial worm gear lubrication. L-CKE compound for the worm oil, mainly for copper - a pair of steel-and two-cylinder, and other types of siege under light load, in a smooth drive without the impact of the worm, deputy. L-CKE / P worm extreme pressure for oil, mainly for copper - a pair of steel cylindrical heavy to bear, there is vibration in the transmission and impact of the worm, deputy.

适用于工业蜗轮蜗杆传动装置的润滑。L-CKE为复合型蜗轮蜗杆油，主要用于铜－钢配对的圆柱型和双包围等类型的承受轻负荷、传动中平稳无冲击的蜗轮蜗杆副。L-CKE/P为极压蜗轮蜗杆油，主要用于铜－钢配对的圆柱型承受重负荷，传动中有振动和冲击的蜗轮蜗杆副。

It's said that Sappho, the Greek female poet who was phraised as"the tenth muse", was good at playing lute, singing and dancing, and was loved by people in her road show on the Balkan Peninsula. Was she frequently dancing trippingly on the beach? Her fine feet stepped on the white silver sand, with blue thin veins appearing underneath her pale skin; and with the cerulean Aegean Sea behind her, waves beating the shore, coming forward and waning backward, helping her to keep time; her tender body looked more delicate on the magnificence background , and then her movements were frozen in the sky.

传说被誉为&第十位缪斯&的希腊女诗人萨福擅长演奏诗琴，且能歌善舞，在巴尔干半岛巡回演出时极受人们喜爱，不禁神往：她是否常翩翩起舞于沙滩之上，纤美的双足踏着洁白的细沙，甚至可以看到那从苍白皮肤下透出的蓝色的细小血管；身后就是蔚蓝的爱琴海，海浪拍打着沙滩，漫过来又退下去，为她打着拍子；她娇小的身体在宏大壮美的背景上更显秀丽，最后永远定格在天空之中。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。