科技文翻译

Sensing Human Activity:GPS Tracking感应人类活动:GPS跟踪Stefan van der Spek1,*,Jeroen van Schaick1,Peter de Bois1,2and Remco de Haan1Abstract:The enhancement of GPS technology enables the use of GPS devices not only as navigation and orientation tools,but also as instruments used to capture travelled routes:assensors that measure activity on a city scale or the regional scale.TU Delft developed aprocess and database architecture for collecting data on pedestrian movement in threeEuropean city centres,Norwich,Rouen and Koblenz,and in another experiment forcollecting activity data of13families in Almere(The Netherlands)for one week.Thequestion posed in this paper is:what is the value of GPS as‘sensor technology’measuringactivities of people?The conclusion is that GPS offers a widely useable instrument tocollect invaluable spatial-temporal data on different scales and in different settings addingnew layers of knowledge to urban studies,but the use of GPS-technology and deploymentof GPS-devices still offers significant challenges for future research.摘要：增强GPS技术支持使用GPS设备不仅作为导航和定位工具,但也为仪器用来捕捉旅行路线:作为传感器,测量活动在一个城市或区域范围内规模。

科技英语阅读与翻译【牙齿仙女】Primitive peoples believe that hair， nail clippings， and lost teeth remain magically linked to the owner even after they have been disconnected from his body. As any voodoo artist will tell you， if you want to grind someone into powder， you don't need to touch him at all. It's quite enough to stamp on a missing molar and let ;contagious magic; do the rest. This is why peoples all over the world traditionally hide lost body parts， lest they fall into the wrong hands.远古时期的人们认为毛发、剪下的指甲和脱落的牙齿即使离开了人的身体，仍与其主人保持着神秘的联系。

正如任何一个伏都教大师都会告诉你的，假如你想置某人于死地，根本用不着去碰他，只需用脚踩碎那人脱落的一颗臼齿就够了，剩下的事就交给无边的法力去办。

这就是为什么全世界各个民族都习惯于把身体上脱落的东西藏起来，以免落入恶人之手。

American children's ritual of hiding lost teeth under their pillows probably derives distantly from this practice. But there is an obvious difference， for when Suzie conceals her baby milk-tooth， she fully expects it to be found， and by a good magician， not an evil one. Moreover， she expects to be paid for having surrendered it， and at the going rate. Nothing mare clearly suggests the blithe commercial gusto of our culture than this transformation of a fearful superstition into a cheery business transaction。

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Well-meaning scientists, engineers, economists and politicians have proposed various steps that could slightly reduce fossil-fuel use and emissions. These steps are not enough.
• 该技术已准备就绪。后文中我们提出了一 个资助计划，计划到2050年用太阳能为美 国提供69%的电能和35%的包括运输在内 的全部能源。
• We project that this energy could be sold to consumers at rates equivalent to today’s rates for conventional power sources, about five cent kilowatt-hour ( kwh ). • 我们预计，这种能源的价格和常规电能的 价格相当，约五美分每千瓦小时。 • rate 比率, 速度, 价格, 费用, 等级
• Thanks for your attention !
• The US is lucky to be endowed with a vast resource; at least 250,000 square miles of land in the southwest alone are suitable for constructing solar power plants, and that land receives more than 4,500 quadrillion British thermal units ( Btu ) of solar radiation a year. • 幸好，美国资源丰富；仅西南部就至少有 25万平方英里的土地适合建设太阳能发电 厂，这些土地一年就能接收到超过450千兆 Btu的太阳辐射能。 • be endowed [indau] with具有, 赋有

The expansio n of metals on heating must be taken into consider ation before a long metal bridge is built. 建金属大 桥前，必 须考虑金 属受热膨 胀现象。 The melting point of a substanc e is the temperat ure at which the change of state from solid to liquid occurs.
用润滑的 办法来减 小运动部 件之间的 摩擦力已 大大延长 了机器的 寿命。 或是v （用n形 式，动 名） ofn+介
classify 划分 The classifi cation of civiliza tion as the stone age, bronze age, and iron age depends principa lly on the kind of tools used. 把人类文 明划分为 石器时代 、青铜时 代和铁器 时代主要 是依据各 时代所用 的工具。
Accordin g to the director , continue d exposure of the eye to light of great intensit y would cause loss of sight. 按医生的 说法，眼 睛连续暴 露于强光 之下会丧 失视力。
在中文 中其实主 动宾 （状） 类似这样 的结构作 主语很常 见，把那 个v提出 来-n， （可加上 adj）， n of主 介n， 这样构成 n介n介n 形成两介 三名词形 象，然后 后面谓语 怎么回事 再跟上， 这样转换 很好用， 也比较地 道。 The reductio n of friction between moving parts by lubricat ion has greatly prolonge d the life of machine.