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The site shows example sentences for English words. How the word or phrase could be used in a sentence?
" ... By leveraging a total of eight quadruply lensed systems (six are shown here), astrophysicists were ... [+] able to use gravitational lensing to place constraints on dark matter substructure in the Universe, and hence on the mass/temperature of dark matter particles as a result. ... "
" ... Six of the quadruply lensed systems used to place the best model-independent constraints on dark... [+] matter's temperature/mass from structure formation alone. This method involved no dependence on the interaction between normal matter and dark matter. ... "