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The site shows example sentences for English words. How the word or phrase could be used in a sentence?
" ... Artist’s illustration of two merging neutron stars. The rippling spacetime grid represents... [+] gravitational waves emitted from the collision, while the narrow beams are the jets of gamma rays that shoot out just seconds after the gravitational waves (detected as a gamma-ray burst by astronomers). We now know that collimated gamma-ray jets are not the full story. ... "
" ... Yet I completely understand the sentiment that you'd expect this heating to take the form of collimated jets, since that's what we see when we look at, say, the supermassive black holes at the hearts of the galaxy Centaurus A, above, or at the giant elliptical Messier 87, below. ... "