首选的

This change was made because of the feeling that perhaps Python's divi- sion operator has been flawed from the beginning, especially because Python is a strong choice as a first programming language for people who aren't used to floor division.

之所以会有这种变化是因为 Python的核心开发团队认为Python的除法运算从一开始就设计失误。特别是，随着Python的逐渐发展，它已经成为那些从未接触过地板除的人们的首选学习语言。

The intellectualized electromobile anticollision system is build up by infrared ray distance measurement,monolithic machinecontrol,acousto-optic warning,hydraulic pressure braking and SO on,which have simplicity structure and easy to link with new or oldelectromobil.When before the dangerous of crash,it can stop quickly and placidly.This avoide the accident of electromobil crash cornpletely and reduced economic losses and social influence infinitely.Which have improved coal mine safety quotiety and productivity andis the preferred scheme for pit transports.

由红外线测距、单片机控制、声光报警、液压制动等单元组成的智能化电机车防撞系统，结构简单，与新旧电机车安装连接方便，当发生撞车危险前能够自动实现迅速而平稳停车，彻底避免煤矿井下轨道运输过程中发生的电机列车相撞事故，极大地降低了因此造成的经济损失和社会影响，提高了煤矿的安全系数和生产效率，是煤矿井下大巷轨道运输的首选方案。

Series stered microscope is classic model, long production history, skilled in the production process, the stability is convenient for users in the industry, the optimization for XTT series product in the exterior tend to be more consistent, optical properties on the depth of cut, flat field, light color has improved.

系列的体视显微镜是款经典型号，悠久的生产历史，熟练的生产工艺，方便稳定是使用者在适用行业的首选，经过优化的XTT系列产品在外型上更趋于一致性，光学性能上景深平场、光切、色度都有了提高。

Owing to its small volume, light weight, high efficiency, succinct circuitry, high reliability and great capability of self-equalizing output loads in different circuitries, the Fly-back Converter becomes the optimally topological form of designing auxiliary power supply of high frequency switching power and driving power supply of power switching.

由于反激式变换器不但具有体积小、重量轻、效率高、线路简洁、可靠性高等优点，而且还具有较强的自动均衡各路输出负载的能力，目前反激式变换器的电路拓扑形式已成为人们设计高频开关电源的辅助电源以及设计各种功率开关驱动电源的首选。

The results showed as follows:(1) the de-farming index of 479 investigated farm households is 79.21% with per capita area of de-farming slope farmland of 0.205 hm~2,per capita grain yield loss resulted from de-farming slope farmland of 74 kg and per capita allowance of 171 yuan from the government in 2003;(2) the de-farming allowance from the government has a bigger influence on a poor household,and if an allowance from the government would be stopped,the re-exploitation of partly de-farmed slope farmland is possible;(3) in 2003,per capita cash income of 479 investigated farm households is 1 492 yuan,and its sources mainly from floating employment,selling grain and greenstuff,de-farming allowance,selling products of domestic livestock and poultry and dealing dicker etc.;(4) in a few coming years,those employments of stable and higher earning will be firstly selected by farmers,and high expected value agriculture or rural commerce are going to become the leading livelihood of a good few farmers with some fund or skill.

结果表明：被调查农户人均退耕坡地0.205 hm2，退耕指数达79.21%；2003年479农户因退耕导致的粮食减产量人均74 kg，得到政府补贴人均171元；退耕补贴对贫困农户的影响程度较大，停止退耕补贴后存在反垦可能性。2003年被调查农户人均现金收入1492元，主要来源于外出打工、卖粮菜、退耕补贴、卖畜禽产品和做小生意等。未来几年，能获得稳定收入且报酬相对较高的行业是农民谋生的首选，有资金积累或一定技能的农户正在将生计转向高附加值农业或第三产业。

A key point in Short Time Fourier Transform is the choice of window function. Although rectangle window is regarded as the first choice because it's featured by integral harmonic to filter signals and by DC component, decaying DC component and frequency shift of signals cause great error to rectangle window STFT. In addition, transient signals contain rich information of faults, but the fixed time window of STFT fail to collect these information.

STFT 算法关键问题之一是窗函数的选择，矩形窗以滤除信号整数次谐波和直流分量的特点自然称为首选窗，但衰减直流分量和信号的频率偏移对矩形窗 STFT 造成了很大误差；其次，暂态信号中含有丰富的故障信息，傅立叶变换固定的频窗忽略了这些特征信息。

After a competitive pitch organised from the Bord Bia roster, London based Leahy Brand Design was appointed to create a brand proposition, redesign the overall brand identity and packaging to establish Peter Keogh as the first choice potato brand for Irish consumers.

后，在Bord比亚名册，总部设在伦敦举办的莱希品牌设计具有竞争力的间距被任命为打造一个全新的命题，重新设计的整体品牌形象和包装确立的首选品牌爱尔兰马铃薯消费者彼得基奥。

Starting with the need to make effective use of limited resources and to conserve the global environment, challenges to be addressed are numerous. Taisei Kogyo is highly acclaimed by society as "Taisei Kogyo the Technical Company" by meeting the needs of the industry by using its "product appeal" and "expertise" for meeting a wide range of applications ranging from large plants to amusement facilities to production lines for information technology equipment. The company does so by using its accumulated know-how and experiences in an attempt to contribute to society as a manufacturer specializing in oil filters and coolers. With our new management policy expressed in the form of the slogan "Speed, Smile, and Communication," Taisei Kogyo aims to produce global products linked closely to the market needs under its production policy "Do our best for all customers" by having all its employees work as one with a customer focus.

产品系列： SFN系列 SFT系列 SFG系列 VN系列 ISH系列 LND系列 LN系列 351系列 352系列 UL系列 UM系列 UH系列 SH系列 GF系列 GC系列 4201系列 TL系列 LCN系列 AK系列 CFK系列 TRF系列 CS系列 CF系列 107系列 AP系列 FA系列 FU系列日本大生是日本重工业集团公司，日本大生的过滤器应用在工业的各个领域，优良的品质和广泛的互换性使日本大生成为许多企业的首选品牌过滤器●压力过滤器●回油过滤器●吸油过滤器●空气过滤器及污染显示器滤芯过滤精度：1μm～100μm过滤面积：420cm2～316800cm2过滤比：β值大于216材质：玻璃纤维、纸质纤维、金属织网滤芯符合国际标准● ISO2941 滤芯抗破裂试验● ISO2942 滤芯结构完整性检验● ISO2943 滤材与液体相客性检验● ISO3723 滤芯额定轴向载荷检验● ISO3724 流量疲劳特性曲线● ISO3968 流量特性曲线● ISO4572 多次通过试验

Now it is well accepted among the clients from home and abroad, it is the most important equipment and the first selection for all the customers in their processing facilities for the production of the lambskin (and other small skins such as rabbit, mink, fox, etc).

天津佳德昌泰机械有限公司的传统产品GI-70-H型烫毛机，经过近年的开发和改进，成为最新的新产品，它具有良好的操控性能，为广大用户所喜爱，是皮毛一体生产厂家的首选和必选烫毛设备。

As the preferentially recommended odorant of the new generation, THT took the place of ethanethiol as the odorant for nature gas by Beijing Natural Gas company in 1996. Due to the relatively short history and low production level of THT in China, little research has been done on it.

四氢噻吩作为在国际上被推荐首选使用的新一代燃气加臭剂，北京市天然气公司于1996年将天然气中的加臭剂由乙硫醇改为四氢噻吩，但中国由于采用四氢噻吩的时间比较晚，且因为四氢噻吩的生产在国内比较少，所以针对四氢噻吩的研究比较缺乏。

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。