有四种

Aside from some other unique instrumentation—including Arabian Violin and cello—Fernandez scores high marks for keeping his tunes short and to the point; each tune states its case, improvises and jams and ends within less than four minutes.

与其他独特的作曲法——包括阿拉伯小提琴和大提琴的演奏——不同的是，Fernandez的曲调简短但却突出重点；每种曲调都有自己的风格，无论是即席的演奏、即兴的改奏还是收尾都不超过四分钟。

There is a wide variety of representations possible and one can express a given Turing machine program as a sequence of machine tables, as flowcharts, or as a form of rudimentary machine code or assembly code called "sets of quadruples".

有各种各样的表述可能和一个可以表达某一图灵机程序作为一个序列机桌，流程图，或作为一种最基本的机器代码或汇编代码所谓的套四倍。

A railroad car or locomotive undercarriage with two, four, or six wheels that swivels so curves can be negotiated.

转向车：一种铁道车或负重车，有两个、四个或六个可转向以顺利通过弯道的轮

The first is to the West Willow community Sihuan Xishan board along the fast, is very strong academic atmosphere of the region, both the transmission to the Summer Palace, Yuanmingyuan represented rhyme at the end of the millennium culture, but also compatible with the Beijing University, Qinghua humanistic spirit of the times ; Yizhuang The second is that the new industrial base, forming a kind of leisure real estate development mode, both the industrial layout, economic development, living environment, space, etc. all have the typical atmosphere of the post-industrial era residential cultural identity, a unique regional cultural competitiveness, also contributed to the Yizhuang real estate in recent years has remained very active, the vitality of this culture will continue; third CBD based commercial real estate for the center, forming a very modern color international business culture; article Four Olympic plate, surrounding the new concept of real estate are the Olympic Games, closely focusing on sports, culture and contemporary spirit of sport psychology to build a living space.

首先是西方柳树社会西山局四环沿线的速度快，是非常强大的学术氛围的区域，无论是传输到颐和园，圆明园代表韵结束时的千年文化，而且也符合北京工业大学，清华大学人文精神的时代；亦庄第二个问题是，新的工业基地，形成了一种休闲房地产的发展模式，无论是产业布局，经济发展，生活环境，空间等都有典型的气氛后工业时代住宅文化认同，一个独特的区域文化竞争力，也有助于亦庄房地产在最近几年一直是非常积极的，富有活力的这种文化将继续；第三次生物多样性公约的商业房地产为中心，形成了非常现代色彩的国际商业文化；第四条奥林匹克板，周围的新概念房地产是奥运会，紧紧围绕体育，文化和当代精神的运动心理学建立一个生活空间。

The aircraft form the structure of plate frame, of 4-and-E, heating the form of electric heating and steam heating two.

该机外型结构有框板式，鄂式和四柱式，加热形式分电加热和蒸汽加热两种。

All is known, transportation is a activity-derived demand, there is direct or indirect touch between producing all kinds of transportation problems and daily travel behavior of residents, such as go-off, activity purpose,mode choice,and route choice. It is necessary of studying transportation system from time,space,activity and mode.

众所周知，城市交通是居民出行的派生现象，交通是一种源于活动的需求，居民日常交通行为如居民出发时间、活动目的、位置选择、交通方式选择和路径选择等，都与城市各类交通现象及问题的产生有直接或间接的联系，所以从时间、空间、活动和方式四个维度上研究交通系统是必要的。

When the number of high accuracy guide stars identified is large, the QUEST algorithm has obvious superiority.According to night-sky observation, based on the guide star flag and the star- Identification information, the selection principle of attitude determination algorithm are given.

四姿态确定算法进行了改进的TRIAD算法和QUEST算法的探讨，这两种定姿算法各有千秋，在识别出的高精度导航星只有2颗的情况下，QUEST算法无法给出姿态，而改进的TRIAD算法可以进行三轴姿态的反演；但在识别出的高精度导航星多的条件下QUEST算法有明显的优势。

But the new species also has similar attributes to dinosaurs known as sauropods, or brontosaurs, that grew to massive sizes and went about on all fours with long necks and whip-like tails.

但新种恐龙也有类似蜥脚下目恐龙或雷龙的属性，这些恐龙长得很巨大，长颈，鞭尾，用四只脚到处爬行。

Both Realia and Animations had more effects on children's drawing, while the effects of Photographs were fewer.

「实物」、「动态影像」、二种教学媒体对四和六年级儿童的绘画空间表现都有明显的影响，「静态影像」影响效果较不显著。

YOU are now officially permitted to blame the pigs. When a strain of influenza with pandemic potential struck in April, it was generally referred to as "swine flu" because it seemed similar to an existing group of strains, known as A/H1N1, which are commonly found in pigs. But when it became clear that the new bug was being spread by people, not porkers, the pig-breeding industry complained that it was being unfairly maligned. It

当我第一次到某个城市的时候，我总要干四件事儿：一是品尝当地最有特色的食物，无论好吃还是不好吃，因为饮食总能代表这个城市最朴素的一种文化；二是喝一喝本地产的啤酒，无论口感好与不好，因为啤酒是一个地方大众休闲品位的代表；三是坐一坐当地的公交车，无论

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