中国FAST望远镜将装配新接收器
文章来源:未知 文章作者:enread 发布时间:2018-05-21 02:55 字体: [ ]  进入论坛
(单词翻译:双击或拖选)
China's Five-hundred-meter Aperture1 Spherical2 Radio Telescope (FAST), the world's largest single-dish radio telescope, will have with a new receiver installed to boost its efficiency in surveying the sky.
 
中国的500米口径球面射电望远镜(FAST),世界最大的单碟射电望远镜,将装配一台新接收器以加强测量天空的效率。
 
The 19-beam L-band receiver, first of its kind worldwide, is expected to be put into use in early June and it will increase FAST's survey speed by five to six times, according to Friday's Science and Technology Daily.
 
The receiver was jointly3 developed by scientists from China and Australia. It weighs 1.2 tonnes and cost over 20 million yuan (about 3.14 million U.S. dollars).
 
Jin Chengjin, chief engineer of FAST's receiver system, said the new receiver has the highest sensitivity and will greatly improve FAST's efficiency in searching for new pulsars and spectral4 lines.
 
Located in a natural, deep round karst depression in Guizhou Province, southwest China, FAST is believed to be the world's most sensitive radio telescope.
 
Its tasks include observation of pulsars, exploration of interstellar molecules5, and monitoring interstellar communication signals.


点击收听单词发音收听单词发音  

1 aperture IwFzW     
n.孔,隙,窄的缺口
参考例句:
  • The only light came through a narrow aperture.仅有的光亮来自一个小孔。
  • We saw light through a small aperture in the wall.我们透过墙上的小孔看到了亮光。
2 spherical 7FqzQ     
adj.球形的;球面的
参考例句:
  • The Earth is a nearly spherical planet.地球是一个近似球体的行星。
  • Many engineers shy away from spherical projection methods.许多工程师对球面投影法有畏难情绪。
3 jointly jp9zvS     
ad.联合地,共同地
参考例句:
  • Tenants are jointly and severally liable for payment of the rent. 租金由承租人共同且分别承担。
  • She owns the house jointly with her husband. 她和丈夫共同拥有这所房子。
4 spectral fvbwg     
adj.幽灵的,鬼魂的
参考例句:
  • At times he seems rather ordinary.At other times ethereal,perhaps even spectral.有时他好像很正常,有时又难以捉摸,甚至像个幽灵。
  • She is compelling,spectral fascinating,an unforgettably unique performer.她极具吸引力,清幽如鬼魅,令人着迷,令人难忘,是个独具特色的演员。
5 molecules 187c25e49d45ad10b2f266c1fa7a8d49     
分子( molecule的名词复数 )
参考例句:
  • The structure of molecules can be seen under an electron microscope. 分子的结构可在电子显微镜下观察到。
  • Inside the reactor the large molecules are cracked into smaller molecules. 在反应堆里,大分子裂变为小分子。
TAG标签: fast telescope receiver
发表评论
请自觉遵守互联网相关的政策法规,严禁发布色情、暴力、反动的言论。
评价:
表情:
验证码:点击我更换图片