For example, it may require a PCR test 24 hours before travel.

例如，旅行前24小时可能需要进行PCR。

The first test I got was a PCR test which stands for Polymerase Chain Reaction.

我做的第一个试是PCR试，它就是聚合酶链反应。

It's a 10th as expensive as PCR, it's absolutely as accurate, and it's simple.

与 PCR 试相比成本只有其十分之一，结果一样准确，而且用起来十分方便。

I just got a nose and a throat PCR test.

我刚刚做了一个鼻咽拭子。

On diagnostics having the ability to give 10 million PCR tests a day.

在诊断时，我们得拥有每天进行一千万核酸的能力。

Mullis had helped develop pcr in the 1980s; in 1993 he shared a Nobel prize.

穆利斯在20世纪80代帮助开发了聚合酶链反应技术; 1993，他和伙伴共同获得了诺贝尔奖。

The gold standard for diagnosis of COVID-19 is RT-PCR, or reverse transcription polymerase chain reaction.

诊断COVID-19的金标准是RT-PCR，即逆转录-聚合酶链式反应。

Antigen tests require higher levels of virus than RT-PCR to return a positive result.

抗原反馈阳性结果所需的病毒水平高于RT-PCR所需的病毒水平。

The RT-PCR tests are currently slowing laboratories to a crawl.

RT-PCR已经妨碍了实验室的工作进展。

Finally, viral DNA can be identified with PCR.

最后，PCR可出病毒DNA。

PCR doubles the amount of DNA that we're interested in looking at in each cycle.

PCR的每个循环会使我们感兴趣的DNA含量增加一倍。

She says Biden tested negative Tuesday via a PCR test.

她表示，拜登星期二的核酸呈阴性。

Shanghai launched its first-ever citywide PCR testing.

上海首启动全市核酸。

The expiry date of a PCR code is marked on the page.

聚合酶链反应二维码的到期日期标记在页面上。

Those entering the country are required to take PCR tests, a special kind of medical test.

所有自境外入境埃及的人员必须接受PCR，这是一种特殊的医学。

Once we've got the cDNA, the steps of RT-PCR are pretty much the same as PCR.

一旦我们获得了互补DNA，RT-PCR之后的步骤便和PCR相似。

Those leaving Sanya are required to have five negative PCR test results in seven days.

离开三亚的人需要在七天内得到五个阴性的核酸试结果。

Shanghai initiated " grid screening" to conduct PCR testing at " key areas" block by block.

上海启动“网格化筛查”，逐块对“重点区域”进行核酸。

Scientists then apply the polymerase chain reaction or PCR, which uses artificial DNA strands called universal primers.

接着科学家们应用聚合酶链式反应，简称 PCR，使用一种被称为通用引物的人工合成 DNA 链。

But here's the problem, current data suggest that RT-PCR is initially only 30-70% sensitive for acute infection.

但问题是，现有数据表明RT-PCR对于急性感染的敏感度只有30-70%。