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This paper introduces the preparing method, the structure, the properties and applications of poly (trimethylene terephthalate) (PTT), and it compared with PET, PBT et al. engineering plastics.

本文介绍了聚甲酸丙醇酯(PTT)的制法、结构、性能及应用,并PET、PBT程塑料进行了比较。

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heterometabolous, heterometamorphism, heterometaplasia, heterometrictitration, heterometropia, heterometry, Heteromi, heteromixis, heteromorpha, heteromorphic,

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3G, 401(K), a,

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Osmosis-液肿

Diagnosis of hemophilia A and B usually starts with lab tests including a platelet count which is usually normal, a prothrombin (PT) time, and a partial thromboplastic (PTT) time.

A和B的诊断通常是进行实验检测，包括小板计数（一正常）、酶原时间（PT），以及部分活酶时间（PTT）。

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Osmosis-液肿

There is also a prolonged prothrombin (or PT) time, as well as prolonged partial thromboplastin time (or PTT), both of which reflect having lower levels of circulating coagulation factors.

酶原（PT）时间和部分活酶（PTT）时间均会延长，两者都反映出液循环中低水平的因子。

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heteroparthenogenesis, heteropathy, heteropelmous, heterophagosome, heterophagy, heterophasia, heterophemy, heterophil, heterophile, heterophobia,

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3G, 401(K), a,
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