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It'shows that the low - density polythene has better improved effects.
低密度 聚乙烯具有较好的改性效果.
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Low - density polythene ( LDPE ) resin containing fluorescent auxiliary and colorant was used to make the was 0.
采用浮染法将荧光助剂、红外辐射剂、着色剂分散进 低密度 聚乙烯 ( LDPE ) 树脂中,通过挤出吹塑制成厚0.
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