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A frequency divider, comprises: an inverting unit comprising an input, and an output; and a plurality of switch inverters in series, having at least a first switch inverter and a last switch inverter; each switch inverter comprising two inphase switches, in which the first switch inverter is connected to the output of the inverting unit, and the last switch inverter is connected to the input of the inverting unit; wherein the two inphase switches of each of the switch inverters are respectively supplied by a first voltage and a second voltage, any two of the adjacent switch inverters are respectively controlled by two inverted clocks, thereby the two inphase switches are selectively turned on synchronously and turned off synchronously.

反相单元包含输入端以及输出端；串联的多个切换反相器，具有至少一第一切换反相器以及最终切换反相器，每一切换反相器包含两个同相开关，其中第一切换反相器连接于反相单元的输出端，且最终切换反相器连接于反相单元的输入端；每一切换反相器的同相开关分别由第一电压与第二电压供电，任何两个相邻的切换反相器分别受控于两个反相时钟，因此该两个同相开关是选择性同步开启及同步关闭的。

With enterprise spirit and technology power to make integral whole.Pursuit "quality first,credit first,service first"as its concept,with implement brand integrationist as famous brand for fhemselves---Minghao series hairdryer product.

名豪电器以实业精神和技术力量汇集一体，秉承"质量第一、信誉第一、服务第一"宗旨，以实行品牌国际化为目标，以满足客户需求为己任，打造自己的知名品牌——"名豪"系列电吹风产品。

First haemal spine anterior to first interneural process; 21 to 28 interneural bones under first dorsal fin.

第一个脉棘第一个位於背侧间的突起前；在第一背鳍下面的 21 到 28个背侧间的硬骨。

The four inventory valuation methods to be used usually are known as (1) specific identification (2) average cost (3) first-in, first-out (4) last-in, first-out.

通常所用的四种存货计价方法是：(1)个别辨认法(2)平均成本法(3)先进先出法(4)后进先出法。

Since its inception, to maintain "quality first, reputation first" principle, with advanced production and testing equipment, first-class products and services to meet customer demand, is to produce various models of gray cast iron, ductile cast iron and ordinary steel, alloy steel castings, such as 3000 tons.

公司自成立以来，保持"质量第一、信誉至上"的原则，用先进的生产、检测设备，一流的产品和服务来满足客户的需求，现可生产各种型号灰口铸铁、球墨铸铁及普通铸钢、合金铸钢件等3000吨。

This proposal has been tested in the present study, in a second-order motion configuration, which was assumed to be irresolvable for the linear filter model. A luminance defined first-order motion and a motion-contrast defined first-order motion were used as control conditions. The results suggest that there was no significant difference between the amplitudes of the flash-lag effect in the second-order motion and in the first-order motion.

用视网膜外推机制不再有效的二阶运动刺激取代前人实验中的一阶运动刺激来研究闪现滞后现象，发现在视网膜推断机制失效的情况下，闪现滞后现象并没有减小，而是和一阶运动刺激条件下的量相当。

In two of her first films, Meryl acted alongside Robert De Niro (in 1978's "The Deer Hunter") and Dustin Hoffman (in '79's "Kramer vs. Kramer"). The films garnered Meryl her first Oscar nomination and her first win, respectively.

梅丽尓在她的两部早期电影《猎鹿人》和《克莱默夫妇》里与罗伯特·德尼罗以及达斯汀·霍夫曼同台飚戏，后一部影片更为梅丽尓收获了第一项奥斯卡提名以及第一樽小金人

In this first bath of hot land for spring breeze of reform and opening up, creating a three-day floor of the "Shenzhen speed", the birth of the country's first stock exchange, the first local commercial banks, but also nurture a storm dare to dare to try, dare to For the world to the spirit of reform and innovation.

在这片最先沐浴改革开放春风的热土上，创造了三天一层楼的"深圳速度"，诞生了全国第一家证券交易所、第一家地方商业银行，更孕育出了敢闯敢试、敢为天下先的改革创新精神。

Directed against stress properties of lining structure of loess highway tunnel, the paper selects three loess highway tunnels as relying engineering according to buried depth and soil properties, and takes field observation synthetically for the first time, which pays more attention to researches on the change regulations of pressure acting on first lining and invert, axial force of lattice girder, contact stress between first and second lining, concrete strain of second lining verse the time and distributions in different positions.

针对黄土公路隧道衬砌结构受力特性，根据埋深和土质情况，选取三座黄土公路隧道为依托工程，首次开展了大规模系统的现场测试，着重研究了一衬和仰拱围岩压力、格栅拱钢筋轴力、一衬和二衬接触应力以及二衬混凝土应变时间变化规律及分布特性。

Legislature is the concept of 'quality first, customers first First, the after-sale is more important!

立安的理念是'质量第一，客户第一，售后更重要！

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。