Through discussing the separation axiom of topological space, we can get the relation-chain of separation axioms. Then the paper lists some examples which are not included in each separation axiom.

通过对拓扑空间上分离公理之间的讨论得出公理关系链，主要给出了各分离公理不能包含的例子。

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When they grow rapidly in relation to revenues, it means you are financing other parts of the food chain in your industry and that's a great way to run out of cash.

流动资本是他们的非现金流动资产和负债。当他们的收益增长迅速时，意味着他们在为这个行业食物链的其他部分提供资金，这样很容易耗尽现金。

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Assembly relation matrix, information matrix and assembly chain were established. Detailed mechanism of collaborative design and algorithm were developed.

建立装配关系矩阵、装配信息矩阵、装配信息链表，给出了详细的协同机制和算法。

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