However, to ensure the effectiveness of PVT experiments, we need the help of high-performance sampling equipment to ensure the fidelity of the samples in the sampling process.

而为了确保PVT实验的有效性，就需要借助高性能的取样装备，确保采样过程中样品的保真度。

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Compared with no sampling, page-level sampling significantly improves performance.

与不进行抽样相比，页级抽样极大地提高了性能。

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To improve the performance and lower the storage requirements of this routine, the estimation can be based on a subset of the data using extremely fast sampling on the page level.

为了改进性能并降低例程的存储要求，估算可使用页面级的极快速取样基于数据的一个子集。

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Improper sampling could also impact the accuracy of common methods used to measure the performance of the predictive coding tool being used.

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