In meteorology, mixing ratio usually refers to the mass ratio, which is defined as the mass of a constituent divided by the total mass of all other constituents in a mixture:
The mass ratio of water vapor in air can be used to describe humidity.
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Famous quotes containing the words mass and/or ratio:
“The mass believes that it has the right to impose and to give force of law to notions born in the café.”
—José Ortega Y Gasset (1883–1955)
“Personal rights, universally the same, demand a government framed on the ratio of the census: property demands a government framed on the ratio of owners and of owning.”
—Ralph Waldo Emerson (1803–1882)