subset part subaggregate subcollection
A subset S of a ring A is a subring of A.
环A的子集S叫作A的子环。
—— 辞典例句This would enable the production of subset catalogues by subject.
这将使按主题编制子集合目录成为可能。
—— 辞典例句The subsets in a partition are called cells.
划分中的各子集被称为单元。
—— 辞典例句A cut of a tree is a subset of its nodes with the following two properties.
一颗树的切割是此树具有以下两个性质的节点子集。
—— 辞典例句From the point of view of Hilbert space sets of measure 0 are negligible.
从希耳伯特空间的观点看来,测度为0的子集是可以省略的。
—— 辞典例句