If it is required to submit samples, ensure the selected samples can represent the "stable" production process.

如果要求提交样品，那么样品的选取应能保证代表“稳定”的加工过程。

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Article 18 the auditors shall, according to the target of test, adopt a suitable audit method to the selected samples.

第十八条审计人员应当根据测试目标，对选取的样本实施恰当的审计方法。

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For his second round of C-14 analysis, Levy doubled the number of samples and meticulously selected charcoal from shrubs with verifiable outer growth rings.

于是在第二轮的C - 14分析中，莱维提供了两倍的样品数量，又细致的选择了来自于带有可检验外层年轮的灌木木炭样本。

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All the polling firms selected their samples using a technique known as quota sampling.

ECONOMIST: Why the polls got it wrong last time

For CNN iReport's cultural census project, we collected more than 200 handwriting samples and selected a handful to be analyzed by an expert.

CNN: Spot-on handwriting analysis surprises iReporters

Two or three of them would be selected to analyse the samples, together with a set of controls, which would be prepared by the OPCW Central Laboratory, to ensure the quality and dependability of the results.

BBC: How to investigate chemical weapons allegations