八

In this chapter the author expounded the origin of the concept of Free-form generators, pointed out that it is the certain result of the development of synchronous multi-axis CNC technology, explained the basic principle of the machining of extended epicycloid bevel gears on Free-form generators and the methods for both hardware and software implementation.

论文第2章是全文的基础，在这一章中，作者论述了Free-form型机床概念的由来，指出它是多轴联动数控技术发展的必然结果；阐述了Free-form型机床加工延伸外摆线锥齿轮的基本原理及其软硬件实现方式；将机床控制系统分解为包含两根虚拟主轴的有两组独立联动的八轴八联动系统；建立了Free－form型机床的数学模型；推导了展成运动速度、加速度及高阶加速度的表达式，为后续的理论分析奠定了基础。

Megara prepared to accompany them with eight ships, Pale in Cephallonia with four; Epidaurus furnished five, Hermione one, Troezen two, Leucas ten, and Ambracia eight.

Megara准备借给他们八条船， Cephallonia 的 Pale 打算给他们四条； Epidaurus提供五条， Hermione 一条， Troezen 两条， Leucas十条， Ambracia 八条。

At first, it analyses the visibility processing of complex scene, including: spatial partition technology BSP, quadtree, octree and equational octree which can optimize scene, category of quick visibility estimation algorithm in the 3D scene, portal which can accelerate rendering, level of detail and mesh simplification based on quadric error metrics used to simply models in 3D scene.

首先分析了复杂场景的可视化处理，包括优化场景渲染的空间剖分技术：BSP树、四叉树、八叉树、均分八叉树；其次是三维场景快速可见性判断算法的分类，可加速渲染的入口技术；最后是用于三维场景中模型简化的两个算法：层次细节模型简化技术和基于视点的二次误差度量网格简化。

Using peptide hydrolysis combined with amino acid analysis, sugar alcohol acetylation combining with GC/MS, fattic acid methyl esterization combining with GC/MS and other technical means it was identify carbohydrate in the bioemulsifier mainly was D-mannose, and main amino acids were glutamic acid, aspartic acid, alanine, and main fattic acids that composed lipid was hexadecanoic acid, octadecenoic acid, and octadecanoic acid.

利用肽水解结合氨基酸分析、糖醇乙酰化结合GC-MS、脂肪酸甲脂化结合GC-MS等技术手段鉴定乳化剂中糖主要为D-甘露糖；主要氨基酸为谷氨酸、天冬氨酸、丙氨酸；构成脂的主要脂肪酸为十六烷酸、十八烯酸和十八烷酸。

With the establishment of the socialist market economy and the continuous improvement of the legal system, July 5, 1994, executive session of the Eighth National People's Congress adopted the eighth "PRC cities Property Management Act," establishes ownership housing registration certification system.

随着社会主义市场经济的建立和法制的不断完善，1994年7月5日全国人大第八届第八次常务会议通过了《中华人民共和国城市房地产管理法》，确立了房屋所有权登记发证的制度。

Competition among four-wave mixing with two dressing fields, the six-wave mixing with one dressing field as well as the eight-wave mixing propagating along the same direction can be evoked by adjusting laser beams because these multi-wave mixing signals are induced by atomic coherence between common levels.

研究发现，通过调节激光束方向，沿同一方向出射的八波混频、双缀饰四波混频和单缀饰六波混频信号因共用能级的原子相干产生而出现竞争现象，通过控制缀饰场减弱四波混频和六波混频信号强度，可以达到增强八波混频信号的目的。

Of others elsewhere in other times who, kneeling on one knee or on two, had kindled fires for him, of Brother Michael in the infirmary of the college of the Society of Jesus at Clongowes Wood, Sallins, in the county of Kildare: of his father, Simon Dedalus, in an unfurnished room of his first residence in Dublin, number thirteen Fitzgibbon street: of his godmother Miss Kate Morkan in the house of her dying sister Miss Julia Morkan at 15 Usher's Island: of his aunt Sara, wife of Richie Goulding, in the kitchen of their lodgings at 62 Clanbrassil street: of his mother Mary, wife of Simon Dedalus, in the kitchen of number twelve North Richmond street on the morning of the feast of Saint Francis Xavier 1898: of the dean of studies, Father Butt, in the physics' theatre of university College, 16 Stephen's Green, north: of his sister Dilly in his father's house in Cabra.

40他联想到旁的时候在旁的地方跪着单膝或双膝曾经替他生火的其他那些人；迈克尔修士，在坐落于基尔代尔郡塞林斯的耶稣会克朗戈伍斯公学校医院的病房里。他父亲西蒙。迪达勒斯，在菲茨吉本街门牌十五号那间没有家具等设备的屋子里，而那是他在都柏林的头一个住所。他的教母凯特。莫坎小姐--住在厄谢尔岛她那奄奄一息的姐姐朱莉姬。莫坎小姐家里。他的舅妈萨拉--里奇。古尔丁的妻子，在他们那坐落于克兰布拉西尔街门牌六十二号寓所的厨房里。他的母亲玛丽--西蒙。迪达勒斯的妻子，那是在北里奇蒙街门牌十二号的厨房里，时间是一八九八年圣方济各。沙勿略节日的早晨。副教导主任巴特神父，在"斯蒂芬草地"北区门牌十六号的大学物理实验室里。他的妹妹迪丽，在他父亲那坐落于卡布拉的家里。

It was wholly in the lower ice, but close against the upper, and was flattish, or perhaps slightly lenticular, with a rounded edge, a quarter of an inch deep by four inches in diameter; and I was surprised to find that directly under the bubble the ice was melted with great regularity in the form of a saucer reversed, to the height of five eighths of an inch in the middle, leaving a thin partition there between the water and the bubble, hardly an eighth of an inch thick; and in many places the small bubbles in this partition had burst out downward,and probably there was no ice at all under the largest bubbles,which were a foot in diameter.

在气泡之下和周围已经结了一层新的冰，所以气泡是在两片冰的中间；它全部是在下层中间的，却又贴近上层，扁平的，也许有点像扁豆形，圆边，深四分之一英寸，直径四英寸；我惊奇地发现，就在气泡的下面，冰溶化得很有规则，像一只倒置的茶托，在中央八分之五英寸的高度，水和气泡之间有着一个薄薄的分界线，薄得还不到一英寸的八分之一，在许多地方，这分界线中的小气泡向下爆裂，也许在最大的直径一英尺的气泡底下完全是没有冰的。

The imprevidibility of the future: once in the summer of 1898 he had marked a florin (2/-) with three notches on the milled edge and tendered it m payment of an account due to and received by J.

未来是不可预测的。一八九八年夏天，有一次他在一枚弗洛林银币周围的饰纹上刻下三条道道，付给大运河查利蒙特林荫路一号的J与T。

In other words, do you want the flower bed to be a four by four bed or a large eight by eight flowerbed?

换句话说，你想花床是由四个或四个大床上八乘八花？

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。