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1)  fuzzy countable compactness
fuzzy可数紧性
2)  Fuzzy Compactness
Fuzzy紧性
3)  I-fuzzy first countability
I-fuzzy第一可数性
1.
In this paper,the concepts of I-fuzzy first countability,I-fuzzy second countability and I-fuzzy density are introduced based on the R-neighborhood structure and the relations of these concepts are discussed.
在I-fuzzy拓扑空间中利用R-邻域系给出了I-fuzzy第一可数性、I-fuzzy第二可数性、I-fuzzy稠密性等概念,并进一步讨论了它们之间的关系。
4)  I-fuzzy second countability
I-fuzzy第二可数性
1.
In this paper,the concepts of I-fuzzy first countability,I-fuzzy second countability and I-fuzzy density are introduced based on the R-neighborhood structure and the relations of these concepts are discussed.
在I-fuzzy拓扑空间中利用R-邻域系给出了I-fuzzy第一可数性、I-fuzzy第二可数性、I-fuzzy稠密性等概念,并进一步讨论了它们之间的关系。
5)  Countable paracompactness
可数仿紧性
6)  countable PS-compactness
可数PS-紧性
1.
When L is a completely distributive DeMorgan algebra,the futher characterizations of countable PS-compactness and PS-Lindelf property are given.
在L-拓扑空间中借助于准半开L-集及其不等式给出了可数PS-紧性和PS-Lindelf性质的新定义,这里L是完备的DeMorgan代数。
补充资料：紧

紧

紧 　　①脉象名。呈拘急收缩，如按绳索，左右弹指之象。常风于寒证、疼痛及宿食等证。《灵枢·禁服》：“盛则为热，虚则为寒，紧则为痛痹。” 　　②针刺入人体后针下紧束有力的感觉。《灵枢·终始》：“邪气来也，紧而疾，谷气来也，徐而和。” 　　③收缩，紧缩。参“紧敛”。

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