More sophisticated caches involve finding them at night by using a system of flashing lights.
Altair was measured using a system of 20-inch telescopes on Palomar Mountain in California.
Using a system of gradual substitution and evolution, the producers ensure that no two bars sound the same.
It allows users to weave in and out of Fry's book using a system of color-coded tags.
Using a system of belts and pulleys to change gears continuously, the transmission is, as Streisand impersonators say, "like buttah".
Using a system of in-cabin sensors and driving monitors, your car is watching you for signs of drowsiness.
And since the European elections are held using a system of proportional representation, every single vote counts.
Very large numbers of variables must be calculated from large numbers of equations using a system of linear programming.
Her cape became a coat with sleeves, using a system of zippers.
Mirror, Mirror Using a system of grids and mathematical formulas, Renaissance artists distorted images in very specific ways, then created etchings of these distorted images on paper.
Brussels believes the 2003 deal could have allowed Amazon's European headquarters to lock in a preferentially low tax rate, using a system of internal royalty payments.
