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.
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).
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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