四维的

The two kinds of PhC TWTs are the interdigital slow-wave structure and metal grating slow-wave strucutre with two-dimensional dielectric PhC, and the meander line slow-wave structure with PhC and cutoff-waveguide structures.

第四章讨论了利用缺陷模式工作的二维光子晶体栅慢波电路和光子晶体对插销带状束行波放大器，和光子晶体-截止波导曲折线慢波电路行波放大器的设计方法。

New owners are piling in: foreign investors have snapped up four clubs in the past year — Liverpool, Portsmouth, Aston Villa and West Ham United — to add to the three which already had non-British owners.

新老板正在蜂拥而来：去年外国投资者已经抢购了四家俱乐部——利物浦、普茨茅斯、阿斯顿维拉和西汉姆联——加入到了已有外国老板的三家俱乐部的行列中。

Athletic references appeared elsewhere in the form of wide stripes on a pair of sundresses and Lurex-ribbed knit sweaters with baseball jersey-style contrasting sleeves.

马恩岛的硬币上或有维京海盗船图案、三条曲腿王家徽章、拉克西抽水轮岛图案，或岛上特有的四只角山羊、马恩岛无尾猫图案。

A man opened fire on a Las Vegas casino early this morning, wounding four people before being tackled by off-duty military reservists.

今晨，在拉斯维加斯的一个赌场中，一名男子在开枪射伤四人后被不当值的预备役军人制服。

Based on the 3D solid model, the changing trend of spiral angle and pressure angle of pitch cone, the thickness-changing trend of face and pitch cone can be analyzed. In addition, the method of cutting tooth on general NC machining center and the measurement of tooth flank geometry on 3D CMM are conducted.

根据锥齿轮切齿仿真所获得的三维几何模型，本文还研究了在通用四轴联动加工中心上加工锥齿轮齿形的方法和在通用三坐标测量机上进行锥齿轮齿面几何形状误差测量及数据处理方法。

Parts taper machining error analysis and compensation for wire cut machine tools;2. Process points analysis for die and mould in wire cut machining;3. Using MasterCAM and UG as the tools, the second method is carried through 3D modeling, 4 Axis NC programming and NC 2nd wire cut of worm wheel involute gear.

针对常规数控加工方法加工精密小模数蜗轮模具型腔，加工精确度低，齿形变形大，传动准确度低的问题，探讨了用Mastercam、UG软件进行蜗轮三维造型、四轴数控编程、数控线切割加工蜗轮模具型腔的工艺方法，给出了解决精密小模数齿轮模具加工新工艺，在工程上具有推广价值。

Remarkably, he returned to training two months later, and six weeks after that he won the super G to become Norway's first Olympic Alpine medalist in 40 years. He also won a bronze medal in the giant slalom.

但令人敬佩的是，两个月后，他就重返训练场，六个星期后的法国阿尔贝维尔，他就在超级大回转项目上为挪威赢得了四十年来第一枚滑雪项目金牌，同时在大回转项目上也夺得铜牌。

MILAN - Bobo Vieri was also satisfied when he spoke to Milan Channel:'I am pleased to have scored my first goal at the San Siro, it meant a lot to it. It was cold this evening but the fans turned up the same. It was an important game, a three-goal win is very positive. As for any criticism, I am relaxed, important for me, the coach and the fans who were pleased for me. We have four good attackers, they all want to score, there is no egotism, we're all available for the coach.

米兰-波波维埃里感到很满意当他在米兰频道采访中说：&我很高兴我在圣西罗取得了第一个进球，这意味着很多，晚上很冷不过球迷很关注比赛，这是一场重要的比赛，三球取胜非常正常，关于批评我非常放松，这对我很重要，教练和球迷都很喜欢我，我有四次很好的进球机会，这里没有个人主义，我们对教练都很有有用。&

He wrote five history plays:Henry VI,Parts I,II,and III,Richard III,and Titus Andronicus;and four comedies:The comedy of Errors,The Two Gentlemen of Verona,The Taming of the Shrew,and Love's Labour's Lost.

He写历史发挥：亨利六世，第一，第二和第三，理查德三世和泰特斯安德洛尼克斯；和四个喜剧：喜剧的错误，维罗纳二绅士，驯悍记，劳动的失落。

He wrote five history plays: Henry VI, Parts I, II, and III, Richard III, and Titus Andronicus; and four comedies: The Comedy of Errors, The Two Gentlemen of Verona, The Taming of the Shrew, and Love''s Labour''s Lost.

他写起五个历史：亨利六世第一，第二、三、李察三世和提泰特斯；四、喜剧：错误的喜剧，两位嘉宾维罗纳、驯悍记、爱劳动的丧失。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。