| 单词 | x-ray telescope | 
| 释义 | > as lemmasX-ray telescope   X-ray telescope  n. Π 1920    J. L. Williams Witness of Sun ii. 23  				But a few months ago they put up that skyscraper that has it on us by three or four stories; and now we can't see each other until the doc invents his X-ray telescope. 1963    Daily Tel. 6 June 21/4  				The X-ray telescope has to be raised above the earth's atmosphere and a technique found for focusing X-rays. 2001    P. Murdin in  P. Moore 2002 Yearbk. Astron.  ii. 143  				We would not be able to view the effects directly because X-ray telescopes do not work as well as optical telescopes in showing sharp pictures. < as lemmas | 
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