无码少妇一区二区三区免费,妓院一钑片免看黄大片,国语自产视频在线,亚洲AV成人无码国产一区二区,激情久久综合精品久久人妻,日韩免费毛片,综合成人亚洲网友偷自拍,国内自拍视频在线观看,欧美熟妇性xxxx交潮喷,国产成人精品一区二免费网站

Prototype dish for SKA super telescope assembled in China

Source: Xinhua| 2018-02-06 22:22:45|Editor: Mengjie
Video PlayerClose

Combined photo taken on Feb. 6, 2018 shows the frontage (L), sideview (C) and the backside of the prototype dish for Square Kilometer Array (SKA) radio telescope. The first fully assembled dish for the SKA radio telescope was unveiled Tuesday in Shijiazhuang, capital of north China's Hebei Province. The SKA, an international effort to build the world's largest radio telescope using arrays in Australia and South Africa, is not a single telescope, but a collection of telescopes or instruments, called an array, to be spread over long distances. (Xinhua/Mu Yu)

SHIJIAZHUANG, Feb. 6 (Xinhua) -- The first fully assembled dish for the Square Kilometer Array (SKA) radio telescope was unveiled Tuesday in Shijiazhuang, capital of north China's Hebei Province.

The SKA, an international effort to build the world's largest radio telescope using arrays in Australia and South Africa, is not a single telescope, but a collection of telescopes or instruments, called an array, to be spread over long distances.

After completion, the SKA will detect faint radio waves from deep space with a sensitivity about 50 times greater than that of the Hubble telescope. Individual radio telescopes will be linked to create a total collecting area of about 1 million square meters.

The state-of-the-art 15-meter diameter dish unveiled Tuesday is one of two final prototypes that will be tested ahead of production of an early array.

It is the first time China has played a leading role in the development of the SKA dish, showing that the country has made technological breakthroughs in radio telescopes, said Hao Jinxin, deputy head of the National Astronomical Observatories under the Chinese Academy of Sciences.

"This is a major achievement by all the partners involved," said Philip Diamond, director-general of the SKA Organization, which is overseeing the project.

"Our Chinese partners are extremely well resourced. They have demonstrated that they have the technology and capability to construct a telescope with the specifications that the SKA requires," added Mark Harman, SKA Organization project manager for the dish consortium.

A second dish will be shipped to South Africa and assembled there to conduct real observations for the first time in the next few months, the SKA Organization said on its website.

Supported by 10 member countries including China, Australia, Canada, South Africa and Britain, the SKA has attracted scientists and engineers from about 20 countries.

   1 2 3 4 5 6 7 8 Next  

KEY WORDS: telescope
EXPLORE XINHUANET
010020070750000000000000011100001369538911
国产在线91精品入口首页| 亚洲春色在线视频| 成年美女黄网站色大片| 2018av天堂在线视频精品观看| 色www视频永久免费| 午夜成人性爽爽免费视频| 最新精品国偷自产在线 | 国产在线观看不卡免费| 88国产经典欧美一区二区三区| 一个人看的www视频免费观看| 日本免费人成视频在线观看| 国产真实交换多p免视频| 久久99中文字幕久久| 97在线观看视频免费| 无码熟妇人妻av在线影片| 中文字幕乱码人妻一区二区三区| 欧美gv在线| 99精品视频九九精品| 亚洲国产精品久久久天堂麻豆宅男 | 骚老师av| 无码aⅴ精品一区二区三区浪潮| 90后极品粉嫩小泬20p | 高清国产av一区二区三区| 亚洲东京热无码av专区| 婷婷六月色| 西西444www高清大胆| 熟女少妇丰满一区二区| 精品成人AV一区二区三区| 精品国产肉丝袜在线拍国语| 亚洲成人精品女人久久| 日韩视频中文字幕精品偷拍| JAPANESE国产在线观看播放| 亚洲狠狠婷婷综合久久久| 国产精品污www一区二区三区| 国产成人精品人人2020视频| 国产精品亚洲аv无码播放| 中文字幕无码免费久久9一区9| 国产精品自在在线午夜出白浆| 国产freexxxx性播放麻豆| 人妻无码av中文系列久| 精品无码一区二区三区爱欲|