The engines were arranged in a double pattern.

发动机安排成一个双重的图案。

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We can use a pattern called Double Dispatch to pull out the variation into the subclasses in such a way that we don't break existing interface contracts.

我们可以使用称为双重分发的模式将变化推入子类中，通过这种方式，我们不需要破坏现有的接口定义。

youdao

I got an unexpected demonstration of the double dispatch pattern in real life the other day.

几天前在实际生活中我意外地得到了双重分发模式的一个演示。

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Its current base is somewhat awkward, but may be viewed as a sloppy double-bottom pattern.

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Still, a bullish double-bottom reversal pattern may be forming on the daily bar chart.

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But now that second-stage lines to the north have been proposed, the 'Y-shaped' pattern spells double-trouble for Staffordshire's politicians.

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