本文研究了空气中高密度聚乙烯薄膜的辐射效应。
The radiation effect of high density polyethylene films in the air was studied.
胶块用聚乙烯薄膜包封。
产品采用聚乙烯塑料收缩薄膜包装或塑料袋装。
Product is packed in polythene plastic thermal-shrink film or plastic bag.
产品采用聚乙烯塑料收缩薄膜包装或塑料袋装。
Product is packed in polythene plastic thermal-shrink film or plastic bag.
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