subset 中文

EN[ˈsʌbˌsɛt]
US

• 子集，為某個集合中一部分的集合，故亦稱部分集合。
• 若X和Y为集合，且X的所有元素都是Y的元素，则有：
• X是Y的子集（或称包含于Y）；
• X ⊆ Y;
• Y是X的父集/超集（或称包含X）；
• Y ⊇ X.
• 所有集合Y都是其本身的子集。 不等于Y的Y的子集称为真子集。 若X是Y的真子集，则写作X ⊊ Y。 "是……的子集"的关系称为包含。

Definition of subset in English Dictionary

• 名词 (Noun)PLsubsetsPREsub-
1. (set theory) With respect to another set, a set such that each of its elements is also an element of the other set.
1. The set of integers is a subset of the set of reals.
2. The set {a, b} is a both a subset and a proper subset of {a, b, c} while the set {a, b, c} is a subset of {a, b, c} but not a proper subset of {a, b, c}.
2. A group of things or people, all of which are in a specified larger group.
1. We asked a subset of the population of the town for their opinion.
• 更多范例
1. 用于句中
• In Principal Component Analysis FOBA (PCA FOBA), PCA was used transductively to select a subset of features (PCA features) and FoBa was used to fit a model.
• Recent advances in surgical resection and combination therapy have significantly improved the 5 year survival for a subset of patients with oligometastatic disease.
• The effect of the two VBFs on balance was studied through classical postural parameters and a subset of stabilogram diffusion coefficients.
• 词类阶层 (Part-of-Speech Hierarchy)
1. 語素
• 字首
• 字首词
• Words prefixed with sub-
• 名词
• 可数名词
相关连结:
1. en subsets
2. en subsetted
3. en subsetting
4. en subset classifier
资料来源: 维基词典

Meaning of subset for the defined word.

在语法上，这个单字"subset"是一个語素，更具体地来说，是一个字首。它同时也是一个名词，更具体地来说，是一个可数名词
困难度: 级别 8
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容易     ➨     困难
明确性: 级别 3
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明确的    ➨     多用途
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