Rough Normal Groups 粗糙正规子群
axiom groups of rough set 粗集公理组
·2,447,543篇论文数据，部分数据来源于NoteExpress
These so-called "lifestyle squatters" are now thought to be far outnumbered by rough sleepers and other vulnerable groups in housing need.
BBC: Q&A: Squatting laws
In the weeks before the deadline, a rough consensus had emerged between two of the parliament's three main groups, the Shia Muslims and ethnic Kurds.
ECONOMIST: Parliament dithers on
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