Meanwhile, it can reduce the packing cost and improve packing efficiency.
主要起到防潮、防尘作用，同时降低包装成本，提高包装效率。
It refers to the cost which changes due to the change of outputs and sales such as packing cost.
指随着产量或销售量的变动而变动的成本，例如包装成本。
As for the package of products with strict requirement for sanitation, the gifts do not need special treatment, which lowers packing cost.
对一些卫生要求严格的产品的包装，赠品也就不需要进行特殊的处理，降低了包装成本。
As for the package of products with strict requirement for sanitation, the gifts do not need special treatment, which lowers packing cost.
对一些卫生要求严格的产品的包装，赠品也就不需要进行特殊的处理，降低了包装成本。
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