在线词典

分类：语言工具

在线词典，是一款在线使用的中英文查词词典。本工具支持查询英文和中文单词及词组的含义，查询效率高、结果丰富，包括单词变体、常用短语、英英释义、同义词、同根词、词语辨析等，是外语学习者必备的在线查词工具。

输入要查询的单词：

近期查询：

dense set

查词链接：https://www.dute.org/dict/dense_set复制链接

稠集

查看英英释义

abstract:

In topology and related areas of mathematics, a subset A of a topological space X is called dense (in X) if every point x in X either belongs to A or is a limit point of A. Informally, for every point in X, the point is either in A or arbitrarily "close" to a member of A - for instance, every real number is either a rational number or has one arbitrarily close to it (see Diophantine approximation).

网络释义

稠密集

... dense ring 稠密环 dense set 稠密集 dense subalgebra 稠密子代数 ...

稠集

... dense layer密集层 dense set稠集 dense bronze密致青铜 ...

常用短语

nowhere dense set无处稠密集；无处稠密点集；疏集
weakly dense set弱稠集
relatively dense set相对稠密集
non-dense set非密集
Nowhere-dense set无处稠密集
nonwhere dense set疏朗集
Dense Set Retrieval聚集区域查询
countable dense set可列稠密集
dense set in ordered sets偏序集的稠密集

更多常用短语

正在查询...

在线词典

dense set

网络释义

常用短语

{error}

{word}

单词变体

常用短语

网络释义

近义词

同根词

词语辨析

{num}、{title}