Problem for quality is strictly controlled to ensure that each piece of clothing through the quality (rather than sampling).

对于质量问题更是严格把关，保证每件衣服都通过质检(而不是抽检)。

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This describes the percentage of the variability in effect estimates that is due to heterogeneity rather than sampling error (chance).

这个指标描述了由异质性而非抽样误差引起效应变异的百分比。

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According to some experts, 720p displays typically pick up just one 540-line field from each two-field 1080i frame, discarding the rest of the data, rather than sampling it.

ENGADGET: To 720p or not 720p? HDBlog raises the question.

But Scott Zeger, the head of the department of biostatistics at Johns Hopkins, who performed the statistical analysis in the study, points out that clustered sampling is the rule rather than the exception in public-health studies, and that the patterns of deaths caused by epidemics are also very variable by location.

ECONOMIST: The Iraqi war