求翻译：标样校核频次依据生产实际和质量指标由质检部门自行确定，对于生产过程监测或产品质量有重要影响的项目必须定期校核且每季不少于一次。是什么意思？

Standard check of the frequency and quality indicators based on actual production by the quality inspection departments to determine, for monitoring the production process or product quality have a major impact on the project and must be regularly checked at least once quarterly.

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The standard sample examination frequency actual and the qualitative index determined voluntarily based on the production by the quality testing department that, has the important influence project regarding the production process monitor or the product quality to have the regular examination also e

Sample check of frequency based on actual production and quality indexes up to the quality inspection departments to determine, for monitoring the production process or product quality has a material effect in the project must be regularly checking and not less than once per quarter.

Sample check of frequency based on actual production and quality indexes up to the quality inspection departments to determine, for monitoring the production process or product quality has a material effect in the project must be regularly checking and not less than once per quarter.