英语词汇“noncompact”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典-现代词典

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单词	noncompact
释义	Definition of noncompact in English: noncompact adjective Not compact; (specifically in Mathematics, of a topological space) such that of any collection of open subsets whose union is the whole space, no finite number of these have a union that is the whole space. Origin Early 20th century; earliest use found in Transactions of the American Mathematical Society. Definition of noncompact in US English: noncompact adjective Not compact; (specifically in Mathematics, of a topological space) such that of any collection of open subsets whose union is the whole space, no finite number of these have a union that is the whole space. Origin Early 20th century; earliest use found in Transactions of the American Mathematical Society.
随便看	(as) dull as dishwater (or ditchwater) as dull as ditchwater -ase a-sea ASEAN asean aseans as easy as abc as easy as abc (as) easy as falling off a log as easy as falling off a log (as) easy as falling off a log as easy as pie as easy as winking as easy as winking (as) easy (or simple)as pie (as) easy (or simple)as pie a sec a sec a second a second ago a second string to bow a second string to one's bow a second string to one's bow a second thought

　

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更新时间：2026/6/2 7:40:58