Perform the sampling and analysis of secondary packaging materials. Perform the sampling of primary packaging materials.

完成外包装材料和内包装材料的取样和外包装材料的测试。

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Perform the sampling and analysis of secondary packaging materials. Perform the sampling of primary packaging materials.

完成外包装材料和内包装材料的取样和外包装材料的测试。

youdao