阿雷西

意大利阿雷西公司的设计理念

The Design Philosophy of Alessi

美国国家科学基金会称，位于波多黎各的直径达305米的阿雷西博射电望远镜设备平台一夜之间坍塌。

The instrument platform of the 305-meter telescope at Arecibo Observatory overnight , according to the National Science Foundation .

目前运行的最大射电望远镜在波多黎各阿雷西博天文台（AreciboObservatory），直径为300米，贵州的FAST将远远超过它。

The current largest operational radio telescope is the 300-meter-diameter Arecibo Observatory in Puerto Rico , but FAST in Guizhou will far surpass that .

提高了带宽将是SERENDIPV有足够能力聆听阿雷西博接收器说接收的数据的整个频谱。

The increased bandwidth will enable SERENDIP V to listen to the entire spectrum of the Arecibo receiver that will be collecting its data .

1974年，阿雷西波天文台向M13方向发送了一份关于地球的无线电讯息。

At the1974 dedication of Arecibo Observatory , a radio message about Earth was sent in the direction of M13 .

自从我们开始使用阿雷西博上的ALFA接收器，发现我们更容易被军用的雷达噪声所干扰。

Since we began using the ALFA receiver at Arecibo we find we are more susceptible to have our data contaminated with military radar noise .

但是成员们的共同努力使ALFA协会获得了阿雷西博差不多三分之一的观测时间。

But there is strength in numbers : working together , the ALFA consortium is granted as much as one third of all the observation time at Arecibo .

因为很难得到充足的望远镜使用时间进行全天调查，如今SETI在阿雷西博的观测采取的是一种附加式的模式。

Because it is so hard to acquire sufficient telescope time for a sky survey , SETI observations at Arecibo were conducted up to now in the in the piggy-back mode .

中国科学院国家天文台首席科学家李菂去年接受《中国日报》采访时表示，“FAST拥有较大的信号接收区，更具灵活性，探查的天空面积是阿雷西博的两倍多，精确度是它的三到五倍”。

Li Di , a chief scientist with the National Astronomical Observatories under the Chinese Academy of Sciences , told China Daily last year that " with a larger signal receiving area and more flexibility , FAST will be able to scan two times more sky area than Arecibo , with three to five times higher sensitivity . "

不过1974年，波多黎各的阿雷西博天文台（Arecibo）用大型无线电天线发送了一个3分钟的编码图片符号，运行速度已达光速，比之前的信息快2万倍。

But in 1974 , a three-minute encoded pictogram was transmitted using the large radio antenna at Arecibo , Puerto Rico. It moves at the speed of light , 20000 times faster .

四分量钻孔应变台网汶川地震前的观测应变变化阿雷西波电离层观测台

Observed strain changes from 4-component borehole strainmeter network before 2008 Wenchuan earthquake

地球上最强大的无线电信号来自阿雷西博天文台。

Earth 's most powerful radio signal is the beam from the Arecibo telescope .

他开始他的搜寻活动以前，发明了一个使用阿雷西博计算机系统的更好的方法。

He discovered a better way to use the Arecibo computer system before beginning his search .

然而在实践中，我们发现阿雷西博说提供的信号并不是100%正确的。

However , in practice , we find the signal provided by Arecibo isn't100 % correct .

陕西省汉台区耕地数量变化与粮食安全研究阿雷西波电离层观测台

Study on the Number Change of Cultivated Land and Grain Security on Han District of Shaanxi Province

效果上罗马穹顶将阿雷西博的球形碟面变成了抛物面形碟面。

In effect , the Gregorian dome transforms Arecibo 's spherical dish into the equivalent of a parabolic dish .

该望远镜完成后，将使波多黎各阿雷西博天文台直径为300米的望远镜相形见绌。

Upon completion , the telescope will dwarf Puerto Rico 's Arecibo Observatory , which is 300 meters in diameter .

罗马穹顶由于它独特的几何外形，将阿雷西博球形碟面反射来的信号聚焦到它内部的一个点上。

The Gregorian dome , due to its unique geometrical shape , focuses the signal reflected by Arecibo spherical dish one a single point inside the dome .

球形的则不同，它会把波束汇聚到一条线上&这就是为什么阿雷西博先前使用的是“线反馈”天线。

A sphere , in contrast , concentrates its beam to a line – which is why a " line feed " antenna was originally used at Arecibo .

接收器安装在距阿雷西博碟盘500尺高的格利高里圆顶上。来自：康翠斯全美保险总监协会-阿雷西博天文台，美国国家科学基金会设施。

The multi-beam in its place inside the Gregorian dome , 500 feet above the Arecibo dish . Credit : Courtesy of the NAIC-Arecibo Observatory , an NSF facility .

与普通的射电望远镜接收器在一个给定的时间只能指向并监听天空中的一个点不同，阿雷西博的新多波束接收机能同时指向7个不同的方向。

Unlike ordinary radio telescope receivers , which point and listen to a single point in the sky at any given time , Arecibo 's new multi-beam receiver can point to seven different points simultaneously .

这非常重要，由于阿雷西博望远镜的独特几何结构：尽管绝大多数的射电望远碟面都是抛物面型的，而阿雷西博的碟面是在地上挖出的一个巨大半球。

This is significant because of the unique geometrical features of the Arecibo telescope : whereas most radio dishes are parabolic in shape , the Arecibo dish is a giant half-sphere dug into the ground .

图释：以上是由波多黎各的阿雷西博天文台收集的一张水星北部极地地区的雷达图片。它与2012年11月29日美国宇航局发布的一张信使号太空船在同一地区收集的加了马赛克的资料图片反映的信息重复了。

A radar image of Mercury 's North Polar Region acquired by the Arecibo Observatory in Puerto Rico is shown superposed on a mosaic of Mercury MESSENGER images of the same area in this NASA handout photo released Nov 29 , 2012 .