本文证明了，在最小度至少为3的前提下超弧连通有向图的迭代线图是超点连通的。
In this paper, we show that under the condition that the minimum degree is at least 3, the iterated line digraph of a super-arc-connected digraph is super-connected.
另一方面，在医院的商旦弧测旧爻搅诧些超氓业信息中，办事员关心的是超支的账单。
On the other hand, in the business office of the hospital, the clerks there are worried about overdue bills.
采用多弧离子镀技术沉积氮化钛铝超硬反应膜。
The influences of process parameters on the surface morphology of the (Ti, Al)N super hard films are studied.
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