Flow may be measured by measuring the velocity of fluid over a known area.

Read this article and see if you are in a known gold-containing area.

Does it not go against a survival instinct, to leave the known area of safety?

Extra police were hired and vehicles in known areas of street work placed under surveillance.

In the area-fraction method, the grain size is calculated from the number of grains inside a known area.

More specifically, it is limited to a range of five known areas where Mission Blue colonies have been confirmed.

For the cards this was expected to correlate with known area.

This is shown in the several measurements obtained at various times of card subjects of known area.

Also the counts for card subjects of known area are very consistent.

Her doctor thought there might be other suspicious areas in her breast that could become cancer if only the one known area was removed.