spiral nebula
英漢例句
- The spiral nebulae are impressive objects.
旋渦星云是迷人的天體。 - Good spectra of the spiral nebulas are difficult to obtain because of their extreme faintness.
旋渦星云因?yàn)榉浅０?，難以得到它們的清晰的光譜。 - With its six-foot-diamater primary mirror, the telescope allowed Rosse to discover the first spiral nebulae.
由于它具有直徑6英尺的主鏡，這臺(tái)望遠(yuǎn)鏡讓羅斯發(fā)現(xiàn)了第一個(gè)螺旋星云。 - By the 1920s, they began to realize that what appeared as the spiral nebulae consisted of remote stellar systems millions of light-years away.
到了20年代，他們開(kāi)始認(rèn)識(shí)到，那些看來(lái)象是旋渦狀星云的東西是由幾百萬(wàn)光年以外的遙遠(yuǎn)星系組成的。 - M101 was also one of the original spiral nebulae observed by Lord Rosse's large 19th century telescope, the Leviathan of Parsontown.
M101也是19世紀(jì)羅斯爵士的大型望遠(yuǎn)鏡最初發(fā)現(xiàn)的旋渦星云之一，該望遠(yuǎn)鏡曾是帕森鎮(zhèn)的巨獸。