英语词汇“friedmann model”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	friedmann model
释义	Friedmann model in American English (ˈfridmən) noun Astronomy any model of the universe deduced from a homogeneous, isotropic solution of Einstein's field equations without a cosmological constant. Such models form the mathematical basis for many modern cosmologies and provide for expansion or contraction of the universe Also called: Friedmann universe Word origin [named after Alexander Friedmann, (1885–1925), Russian mathematician, who made the necessary calculations in 1922]
随便看	to send sb to sleep to send someone packing to send someone to coventry to send sth by post or (us) mail to send sth flying to send sth off (to sb) to send sth round (to sb) to send sth (to sb) to send word of sb/sth to send word that ... to sense that ... to sentence sb to death to sentence sb to death/to 5 years in prison to separate from to separate (people/things) into groups to separate sth from sth to separate the wheat from the chaff to sort the wheat from the chaff to serve as sth to serve on a committee/jury to serve to do sth to set about sth/doing sth to set adrift to set alarm bells ringing to set an example to set a trend

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Friedmann model in American English