Not only are mapping and reduction amenable to parallelization, but the map and reduce operations can be combined into a single parallel pass, which is even more efficient.

不仅映射和减法支持并行化，映射和减法运算也可结合到单个并行循环中，这样效率更高。

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This allows you to pass a parallel collection to existing (non-parallel) code bases and potentially use that code as is.

这将允许您传递一个并行集合给现有(非并行)代码库并按原样使用该代码。

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The multi-parallel- magnification circuits and the band-pass filter can well restrain random interfering noise, especially generated by test run vibration.

适配电路中的多级并联放大电路、带通滤波器对试车过程中的随机干扰信号，尤其是振动引起的噪声具有很强的抑制作用。

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They struggle to pull it out of the way, and give up, only for the train to pass by on a parallel track.

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But if the pollsters are right, something that will pass north of the 49th parallel for a revolution is indeed about to occur.

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