Plastic and vacuum packaging played the good moisture-proof role.
塑料袋和真空包装防潮效果好。
The packaging film (10) of the bag body (19) has a moisture-proof layer (12) composed of an aluminum foil and an intermediate layer (13) composed of a drawn nylon.
袋体（19）的包装膜（10）具有由铝箔形成的防潮层（12）、以及由延伸尼龙形成的中间层（13）。
The packaging film (10) of the bag body (19) has a moisture-proof layer (12) composed of an aluminum foil and an intermediate layer (13) composed of a drawn nylon.
袋体（19）的包装膜（10）具有由铝箔形成的防潮层（12）、以及由延伸尼龙形成的中间层（13）。
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