A metric modulation is a modulation from one metric unit or meter to another.
From the en.wikipedia.org
In Spanish-speaking countries it denotes a pre-metric unit of weight.
From the en.wikipedia.org
This article is about the metric unit of mass.
From the en.wikipedia.org
The choice of the metric unit for the prototype was because at the time the Imperial and US inches differed in size slightly, and neither country could legally specify a unit of the other.
From the en.wikipedia.org
While attempting to develop an inexpensive international standard for the meter, the metric unit of length, Guillaume hit upon an inexpensive iron-nickel alloy that expands very little when heated.
From the sciencedaily.com
The standard metric on the unit sphere agrees with the Fubini-Study metric on the Riemann sphere.
From the en.wikipedia.org
British law now defines each imperial unit in terms of the metric equivalent.
From the en.wikipedia.org
The metric system features a single base unit for many physical quantities.
From the en.wikipedia.org
Standard time of day is defined by various time scales, such as UTC, which are now usually based upon the metric base unit of time, the second.