一旦被人所知，它就迅速传播开来，替代了水钟，但却没有替代日晷，日晷被用来将新机器与原来的计时方法进行对照检查。

Once known, it spread rapidly, driving out water clocks but not solar dials, which were needed to check the new machines against the timekeeper of last resort.

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因此，现在就对照检查一下自己的电脑吧。

So, now control their own computer to check it.

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结果：CDFI对照检查结果和PET检查结果基本一致。

Results: The results of CDFI corresponded to those of PET basically.

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