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聚对苯二甲酸丙二酯
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聚对苯二甲酸丙二酯
Encyclopedia
理学
聚对苯二甲酸丙二酯
释
polytrimethylene terephthalate; PTT
聚对苯二甲酸丙二酯
由对苯二甲酸二甲酯与1,3-丙二醇进行酯交换或对苯二甲酸与1,3-丙二醇酯化后缩聚而成的一种半芳香族聚酯。80%用于纤维,其余则主要用于薄膜和工程塑料。英文缩写PTT。
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water diversion project from the Yellow River to the canal in ancient China
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water diversion structure of hydropower station
water-diverting agent
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water drainage of concentrators
Water Drainage Standard for Mariculture
water draught gauge
water-drawing permit
water-drawing permit system
water-drawing right
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Water-driven Astronomical Clock Tower
water-driven blower
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water ecological culture
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water ecological risk assessment
water ecosystem succession
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