丙纶是聚丙烯纤维的商品名称，它是由丙烯作原料经聚合、熔体纺丝制得的纤维。

Polypropylene is the trade name of polypropylene fiber, which is by the polymerization of propylene as raw material by the melt spinning of fibers obtained.

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将位于多巴胺运输器基因3 '端未转译区段的40 -碱基多形性重复序列予以纯化、经聚合酶链锁反应放大。

A 40-base polymorphic repeat sequence located in the 3 '-untranslated region of the DAT gene was purified and amplified by polymerase chain reaction (PCR).

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在送往开罗NAMRU 3海军医学研究所参考实验室的38份血液样本中，有13份经聚合酶链反应试验检测黄热病确认为阳性。

Of 38 blood samples sent to the reference laboratory, Naval Medical Research Unit, NAMRU 3 in Cairo, 13 were confirmed positive for yellow fever by PCR tests.

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