Designs, institutes, and documents quality assurance programs.
设计，制定和归档相关质量保证程序。
Cost effective Quality Assurance programs for down and feather products are a challenge because the material is a natural product and very non-homogeneous.
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.
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。
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