英语词汇“planetary nebula”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	planetary nebula
释义	Trends of planetary nebula View usage for: planetary nebula in British English noun an expanding shell of gas surrounding a dying star, formed from matter ejected from the star's outer layers; the gas is ionized by the remaining hot stellar core, emitting light in the process Word origin C18: named from its (occasional) resemblance to a planetary disc planetary nebula in American English a glowing, expanding nebula that forms around a collapsing star Word origin from its resemblance, when viewed through a telescope, to a planet
随便看	to pump money into sth to pump sb for information to pump sth into/out of/up from sth to punch a hole in sth to punch sb on the nose/in the eye to punish sb for sth/for doing sth top up top-up top-up card top-up loan to purse one's lips to push a door open/shut to push ahead (with sth) to push forward/push through the crowd to push one's way through the crowd to push on (with sth) to push o.s. to the limit to push/pull the door to to push sb into doing sth to push sb to do sth to push sth/sb out of the way to push the boat out to push your luck to put a brave face on sth to put a cat/dog etc to sleep

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Trends ofplanetary nebula