因此，它没有经过我们一贯的品质保证程序，并在时间可能不会感到抛光或全部作为正式发布。

As such, it has not undergone our usual quality assurance processes, and at times may not feel as polished or complete as an official release.

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花费有效的成本，以获得羽绒羽毛产品的品质保证程序，是一项有挑战的工作，因为这种原料是天然产品而且非常不均一。

Cost effective Quality Assurance programs for down and feather products are a challenge because the material is a natural product and very non-homogeneous.

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