... 直接用语和间接用语 the direct speech and indirect speech 直接和 direct sum 和间接套汇 indirect arbitrage ...
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Direct sum of groups 群的直和
topological direct sum [数] 拓扑直和
direct sum of rings [数] 环的直和
vector space direct sum 向量空间直和
direct sum decomposition [数] 直和分解
decomposition in a direct sum 直和分解 ; 直和分化
direct sum of modules [数] 模的直和
orthogonal direct sum [数] 正交直和
以上来源于: WordNet
When a direct sum of lifting modules is lifting is studied here.
研究了提升模的任意直和在什么条件下仍是提升模。
An integral extension construction of domains was also derived by using the semi-direct sum of rings.
同时，还证明了半直和的剩余类环是整环的一个整扩张。
We introduce the notion of topological direct sum, and get a representative theorem of inductive limit by topological direct sum and quotient space.
然后引入拓扑直和的概念，利用它和商空间给出一个归纳极限表示定理。
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