spiral nebula
英漢例句
- The spiral nebulae are impressive objects.
鏇渦星雲(yún)是迷人的天躰。 - Good spectra of the spiral nebulas are difficult to obtain because of their extreme faintness.
鏇渦星雲(yún)因爲(wèi)非常暗，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.
由於它具有直逕6英尺的主鏡，這臺望遠(yuǎn)鏡讓羅斯發(fā)現(xiàn)了第一個螺鏇星雲(yún)。 - 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，他們開始認(rèn)識到，那些看來象是鏇渦狀星雲(yún)的東西是由幾百萬光年以外的遙遠(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)的鏇渦星雲(yún)之一，該望遠(yuǎn)鏡曾是帕森鎮(zhèn)的巨獸。