采用拉伸实验，研究形变速率对聚乙烯包装薄膜力学性能的影响。
The effect of deforming velocity on the tensile properties of the polyethylene film for packaging is studied by mechanical tensile test.
研究了不同贮藏温度和不同聚乙烯薄膜袋包装处理对黄花梨果实贮藏效果的影响及其生理基础。
Different treatments of temperature and polyethylene film bag packing were carried out to investigate their effects and physiological basis during Huanghua pear storage.
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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