1) utilisation time
2) utilization time
the quotient, expressed in hours, of the consumption within a specified period, e.g. year, month, day, etc., and the maximum or other specified demand a occurring within the same period
GRM: n. (1,2)
REG: British English (1), American English (2)
USG: generally not to be used without specifying the demand and the period to which it relates (1,2)
Note:

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