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A "mache" is a unit of measurement used in computing and telecommunications to express the speed of data transfers or processing. However, it is possible that you might be referring to "Mach," which is a dimensionless unit used to quantify the speed of an object moving through a fluid, specifically the speed of sound in that fluid.

Ancestors (6)

  1. Obsolete units of measurement
  2. Units of measurement
  3. Quantity
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