So, for example, if you were interested in some protein involved in cancer, you could tag it with GFP.

例如，如果你对和癌症有关的,蛋白质感兴趣，你可以用GFP标记它。

麻省理工公开课 - 化学原理课程节选

What we need to do is get rid of the Coulomb tag that we have - that's how we measure our electron charges - charge, and so we use this epsilon nought quite often, this permativity constant of a vacuum to make that conversion.

怎么量度电子电荷,所以我们会经常用到,这个epsilon，nought记号,这是真空中的介电常数,我们还要指出,这个介电常数。

麻省理工公开课 - 化学原理课程节选

You can tag articles so Rojo can better determine relevant content for you.

FORBES: The Rise Of RSS

The proposed but long-delayed Specialist and Critical Care Centre for Gwent would be a model for the new system, but the price tag has so far been a major impediment to its introduction.

BBC: "Very significant heat in the system"

So when this tag popped off, the satellite system that it talks to was able to pinpoint its location, and that was the spot that was about 25 miles off Point Conception.

NPR: Released Great White Shark Located