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1.If E is a finite-dimension space,then F is relatively compact iff F is both equicontinuous and uniformly bounded.
然后指出当E是有限维空间时,F是相对紧的当且仅当F是等度连续且一致有界,这推广了AA定理。收藏指正
2.any of numerous chiefly shorebirds of relatively compact build having straight bills and large pointed wings; closely related to the sandpipers.
主要是骨格比较紧凑的滨鸟,直嘴,翅膀大而尖;与矶鹞有亲缘关系。收藏指正
3.relatively small compact tawny-brown heron with nocturnal habits and a booming cry; found in marshes.
相对较小的茶棕色鹭,夜间活动、叫声轰然作响;常见于沼泽地带。收藏指正
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