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Departing from basic concepts of cardinal numbers and their numbering orders, the paper differentiated and analyzed some concepts easy to be confused related to binary system, pointing out that the introduced concepts of ordinals played an important role in the development of modern mathematics. As the foundation of SHAO Yongs mathematics, the primordial Yi, in the history of mathematics, exhibits the first specially defined ordinal system, in which the binary numbering method was used at the first time.

本文从自然数及其记数法的基本概念出发，辨析了与二进位制相关的几个容易混淆的概念，指出序数概念的引入在近代数学发展中有重要意义，作为邵雍数学学派的数学基础，先天易是数学史上第一个专门定义的序数体系，该序数体系在数学史上率先采用了二进位制记数法。

My first time with Carol was my first time.

我和卡萝的第一次是我的第一次

When the space shuttle blasts off on its first working mission in the early 1980s, the payload it will haul into orbit will be the first of an unusual type of all-purpose carryall, called Spacelab, designed to take many kinds of specialists and equipment beyond the earth.

当航天飞机摧残离开在它的第一个工作任务上在 1980 年代早期，负载量它将会进入轨道之内拖将会是那首先不寻常类型的万用单马轻便马车， Spacelab 呼叫，设计带许多类型的专家和设备超过地球。

According to the structural intensity model of the Hybrid Extend-range Projectile at the first critical state, in order to validate the structural intensity of the pill at the first critical state, This paper analyses the transient process of cartridge case, rammer, gasket squashing in bore in detail.

本论文结合科研项目，主要通过建立复合增程榴弹在第一临界状态时的结构强度动力学模型，对弹体、弹带、药柱和垫板在相应的冲击挤进过程进行了瞬态有限元分析，校核了弹丸在第一临界状态时的结构强度。

The results showed that plant height increasing speed was significantly slow at the former and middle stage when K level was above 180 kg/hm2.On the contrary,the height of case-hardened plant improved markedly.When the K level was above 135 kg/hm2,the stem girth and maximal leaf area differed significantly as compared with CK,so did LAI.Yield and product value per unit area took the first place when 180 kg/hm2 potassium was used.Average price and proportion of middle and first grade tobacco leaf of 225 kg/hm2 potassium treatment were the highest as compared with other treatments and CK.Four economic characters of the two treatments differed at obvious significant level as companied with CK.The total sugar and K2O were increased,nicotine, total N,protein and Cl- were decreased with increased K levels.The potassium lacked symptom was alleviated with increased K levels,no symptoms was observed when 180 kg/hm2 potassium was used,the degree of weather infected fleck was decreased when the K levels was increased.

结果表明，在烟株生长前中期，当施钾量达到180 kg/hm2以上时，株高增长显著变慢，而定型株高则显著增高；茎围和最大叶的面积在施用135 kg/hm2以上的处理与CK之间的差异性达到极显著水平，叶面积指数也存在显著差异；单位面积产量和产值以施用180 kg/hm2的处理居首位，中上等烟比例和均价以施用225kg/hm2的处理最高，这两种处理的以上4个经济性状与CK之间存在极显著性差异；烟叶中的总糖和K2O含量随施钾量的增加而上升，烟碱、总氮、蛋白质和C-含量则下降；缺钾症状随施钾量增加而减轻，至施用180kg/hm2时已无缺钾症状；烟叶气候斑的发生程度也随施钾水平的提高而减轻。

The first Cathars appeared in Limousin between 1012 and 1020, but by the 12th Century the movement had grown to become very popular and the Church considered it a threat. The name 'Cathar' was not used by them but by their opponents. They were calling themselves Good People. When he came to power in 1198, Pope Innocent III was determined to suppress the Cathars. At first he tried peaceful conversion; however priests sent in to convert the Cathars met with little success.

Cathar'并不是他们的自称，而是他们的反对者对其的称呼，而他们称自己作为'Good People'当教皇英诺森三世在1198年掌权时，便下决心要废止Cathar教派，首先他尝试和平的使他们改变信仰，但被派往Cathar派劝说的牧师并没有得到多少成果。

Cathay Hotel, our guests all the employees first, quality first principle of service, a full of enthusiasm, quality service, you are welcome to come.

国泰大酒店全体员工秉承宾客至上，质量第一的服务宗旨，一饱满的热情，优质的服务，欢迎您的到来。

My first contact with MSTC started with the first cathedra about programming technology,which was initiated by MSTC technology department.

第一次近距离接触到MSTC是在编程技术版第一次版聚的时候，那次虽说是版聚但却是MSTC技术部主办的。

The first time I was brought into contact with MSTC started with the first cathedra about programming technology,which was initiated by MSTC technology department.

第一次近距离接触到MSTC是在编程技术版第一次版聚的时候，那次虽说是版聚但却是MSTC技术部主办的。

" There were apparently the first white men to witness the O-Kee-Pa, and Catlin was the first to describe it: on January 10, 1833(though written on August 12, 1832), in the New-York Commercial Advertiser ; then in 1841 in his Manners, Customs, and Conditions of the North American Indians ; and finally, in 1867 in a little book (with a Folium Reservatum for scholars) entirely devoted to the ceremony."

他们显然是第一批目睹欧吉帕的白人，卡特林则第一个描述了它：先是在1833年1月10日（尽管写于1832年8月12日）的《纽约商业广告报》上，然后是1841年在他的《北美印第安人的举止、习惯和传统》中，最后是1867年在一本专门讨论这一仪式的小书里（附有一篇为学者们写的说明附录）。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐