| 1. | A subset s of a ring a is a subring of a .
环A的子集S叫作A的子环。
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| 2. | The null subset corresponds to the term 1 .
空集则对应于常数项1。
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| 3. | The subsets in a partition are called cells .
划分中的各子集被称为单元。
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| 4. | V'is a nonempty subset of v .
V是v的一个非空子集。
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| 5. | 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。
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| 6. | a clique of a simple graph α is a subset s of ν.
简单图的一个团是指中的一个子集s。
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| 7. | Each subset is determined by some occurrence of these three events .
每一个子集，由这三种事件出现的情况而决定。
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| 8. | 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。
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| 9. | In certain case it might be necessary to further decompose a spiral into convex subsets .
在某些情况下，把一个螺旋形进一步分解成凸子集是必要的。
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| 10. | This demonstrates that adding another element to the whole set doubles the number of subsets .
这说明在一个集中加入一个新元素，其子集的总数扩大一倍。
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