Over a lifetime, a polyester blouse uses less energy than a cotton T-shirt.

在整个使用寿命中，一件含聚酯成分的罩衫要比一件棉制T恤更节约能源。

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A polyester shirt or dress, nylon socks or stockings, and acrylic sweater-a raincoat of PVC ( polyvinyl chloride)?

是化纤服装（衬衫还是外套），是尼龙袜（短袜还是长袜），晴纶毛衣还是塑料雨衣？

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For such materials the initial macromolecule tends to be a polyester or polyether; it is the crosslinks that involve the formation of a polyurethane structure.

对于这种材料的初始高分子往往是聚酯或聚醚，它是涉及聚氨酯结构的形成的交联。

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"A polyester reinforcement at the core with probably a polythene layer around that, " Garvey said.

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It's made by wrapping plastic from recycled bottles around a polyester fiber and swaddling it all in cotton.

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The flat devices are integrated with a polyester backing familiar from stick-on tattoos.

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