三商映射是完备映射和开映射的共同推广。
Tri quotient maps are a common generalization of perfect maps and open maps.
然后将自动打开映射编辑器（请参见图8）。
给出了强ps -不定开映射和强ps -不定闭映射的概念，并且讨论了它们的一些性质。
The concepts of strong PS-irresolute open mapping and strong PS-irresolute closed mapping are introduced in L-spaces and their properties are researched.
深化算子的开映射定理，对偶地定义了算子的闭映射与弱闭映射，并讨论了相关的若干性质。
Deepen the open mapping theorem, define the closed mapping and the weakly closed mapping under untithesis, and also discuss some of their related properties.
深化算子的开映射定理，对偶地定义了算子的闭映射与弱闭映射，并讨论了相关的若干性质。
Deepen the open mapping theorem, define the closed mapping and the weakly closed mapping under untithesis, and also discuss some of their related properties.
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