For children, inhalers should be used with spacers.

对于儿童，吸入器应该与一起使用。

And in between these repeats are unique sequences called spacers.

这些重复间的独特序列被称" 间隔序列" 。

The spacer helps get the medication deep into the lungs instead of just in the mouth.

可以帮助药物深入肺部，而不仅仅停留在口腔内。

This is what a spacer looks like.

这就是垫片的样子。

Well, between each repeating section of DNA, there are short sequences of DNA called spacers.

那么，在 DNA 的每个重复部分间，都有称间隔区的短 DNA 序列。

Once the virus has been identified, the DNA in the spacer is copied into an RNA molecule.

一旦病毒被识别，间隔子中的 DNA 就会被复制到 RNA 分子中。

But if the virus is new, DNA from it must first be inserted into the CRISPR sequence as a new spacer.

但如果病毒是新病毒，它的 DNA 必须首新的间隔区插入 CRISPR 序列。

Now it turns out that the spacers in CRISPR locations are kind of a historical record of DNA viruses that have previously infected the host.

现在证明CRISPR位点上的间隔序列是早感染过宿主的DNA病毒留下的一种历史记录。

So when a DNA virus gets into a host cell, certain fragments of it called Protospacers are incorporated into the host's genome, becoming the spacers in CRISPR locations.

当DNA病毒进入宿主细胞时，其被称" 原间隔序列" 的特定片段会被整合进入宿主基因组变成CRISPR位点上的间隔序列。

The inhaler, spacer, and mask can be bulky to carry around, but all people with asthma need to have their rescue medicines close by at all times.

吸入器、和面罩携带起来可能比较笨重，但是所有哮喘患者需要随时都携带他们的救援药物。

What's left are mature crRNAs each made of the complements to both the 3 prime repeat and about 20 nucleotides of a spacer, still bound to tracrRNA.

留下的成熟crRNA依然与tracrRNA结合，每一个都由重复序列互补链的3'端和间隔序列互补链约20个核苷酸组成。

So, when a virus invades a cell, if there is an associated spacer already there, meaning it's on the most-wanted list, the bacterium can go on to destroy the virus.

因此，当病毒入侵细胞时， 如果那里已经有一个相关的间隔子，这意味着它在最想要的名单上， 那么细菌就可以继续摧毁病毒。