覆盖映射的英文
发音:
"覆盖映射"怎么读用"覆盖映射"造句
英文翻译手机版
- covering map
- "覆盖"英文翻译 cover; overlap
- "映射"英文翻译 shine upon; cast light upon; ...
- "映射" 英文翻译 : shine upon; cast light upon; representation; [数学] mapping; map 阳光映射在江面上。 the sun shines upon the river
- "覆盖" 英文翻译 : 1.(遮盖) cover; overlap 青松覆盖的山峦 hills covered with pinetrees; 地上覆盖着厚厚的积雪。 the ground was covered over with thick snow. 秧苗上面覆盖着塑料薄膜。 the rice seedlings were covered with plastic sheeting.2.(植被) plant cover; vegetation3.(保护层, 覆盖物) cover; covering; overjet; blanket; mulch; coverage 双叶覆盖 two-sheeted covering; 树木覆盖率 tree coverage
- "凹映射" 英文翻译 : [数学] concave mapping
- "闭映射" 英文翻译 : abgeschlossene abbildung closed map; closed mapping
- "从映射" 英文翻译 : bundle mapping
- "丛映射" 英文翻译 : bundle map
- "低映射" 英文翻译 : harmonic mapping
- "复映射" 英文翻译 : complex mapping
- "含映射" 英文翻译 : inclusion map
- "积映射" 英文翻译 : product mapping
- "集映射" 英文翻译 : mapping of sets
- "键映射" 英文翻译 : key map
- "紧映射" 英文翻译 : compact mapping
- "镜射、映射" 英文翻译 : mirror
- "开映射" 英文翻译 : interior mapping; open mapping
- "空映射" 英文翻译 : empty mapping
- "扩映射" 英文翻译 : expanding map
- "类映射" 英文翻译 : c mapping
- "链映射" 英文翻译 : chain mapping
- "逆映射" 英文翻译 : inverse function; inverse mapping
- "谱映射" 英文翻译 : spectral mapping
- "切映射" 英文翻译 : tangent mappings
- "商映射" 英文翻译 : quotient mapping
例句与用法
- Pseudo - sequence - covering images of locally separable metric spaces
局部可分度量空间的伪序列覆盖映射 - It is a main task of general topology to compare different spaces . mappings which connect different spaces are important tools to complete it . which mapping preserves some special generalized metric space is a basic probleme in investigating generalized metric spaces by mappings . g - first countable spaces and g - metri / able spaces have many important topological properities so to investigate which mapping preserves them is very necessary . in [ 7 ] , clnian liu and mu - ming dai prove that open - closed mappings preserve g - metri / able spaces ; whether open mappings preserve g - first countable spaces is an open probleme asked by tanaka in [ 6 ] . in [ 4 ] , sheng - xiang xia introduces weak opewn mappings and investigates the relations between them and 1 - sequence - covering mappings . in the second section of this article , we investigate weak open mappings have the relations with other mappings and prove that the finite - to - one weak open mappings preserve g - first countable , spaces and weak open closed mapping preserve g - metrizable spaces . in the third section , we investigate an example to show that perfect mappings do not preserve g - first countable spaces , g - metrizable spaces , sn - first countable spaces and sn - metrizable spaces
在文献[ 4 ]中,夏省祥引进了弱开映射,并研究了它和1 -序列覆盖映射的关系。本文在第二节研究了弱开映射与序列商映射,几乎开映射的关系,证明了有限到一的弱开映射保持g -第一可数空间;弱开闭映射保持g -度量空间。第三节研究了文献[ 5 ]中的一个例子,证明了完备映射不保持g -第一可数空间, g -度量空间, sn -第一可数空间, sn -度量空间。
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