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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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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The evaluation was based on a random sampling of American opinion toward car brands in seven areas: quality, safety, value, performance, design, technology and environmental friendliness.

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