分类:
polymers
订阅polymers的发音
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butylene的发音butylene [en]
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Silly Putty的发音Silly Putty [en]
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polyepoxides的发音polyepoxides [en]
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siliconen的发音siliconen [nl]
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polyimides的发音polyimides [en]
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polyurethane的发音polyurethane [en]