During the single dot cross operation, import the athuard ordinal number arrow, simplify the cross operation of the natural sequence.

在单点交叉过程中引入了逆序数向量进行交叉，简化了自然数序列的交叉过程。

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The end node is visualized with a circle containing a cross, while the stop node is visualized with a circle containing a black dot.

结束节点用一个含有十字交叉图案的圆圈表示，停止节点则显示为一个含有黑点的圆圈。

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OK, now, so there's an interesting thing to note, which is that we can use the usual product rule for derivatives with vector expressions, with dot products or cross products.

还有个很有趣的现象要注意一下，就是我们可以用乘积法则,对向量表达式求导，无论是点乘或叉乘。

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Undocumented immigrant is not only not pejorative, it implies a moral judgement an implicit tut-tut for misplacing some papers of failing to dot ever i and cross every t.

FORBES: Society of Professional Journalists: Reporters Shouldn't Use Pejorative Terms Like "Illegal Immigrant"

But to dot all the I's and cross all the T's, it will take a few more years.

BBC: Cosmos may be 'inherently unstable'

This senior official said that the Bush administration wanted to "cross t's and dot i's" before it authenticates or dismisses the latest e-mail.

CNN: Conflicting reports on missing reporter's fate