Operating Time, Effective

average accrued operating time of a repairable item between failures (disruptions of its working capacity). If the accrued operating time is expressed in units of time, then the effective operating time means the average time of trouble-free operation. The effective operating time for the period from accrued operating time t₁ to accrued operating time t₂ is determined by the equality

where m_av is the average number of failures (per item) for a certain number of similar articles until accrued operating time t_i (i = 1, 2) determined by testing.

单词	operating time, effective
释义	Operating Time, Effective Operating Time, Effective average accrued operating time of a repairable item between failures (disruptions of its working capacity). If the accrued operating time is expressed in units of time, then the effective operating time means the average time of trouble-free operation. The effective operating time for the period from accrued operating time t₁ to accrued operating time t₂ is determined by the equality where m_av is the average number of failures (per item) for a certain number of similar articles until accrued operating time t_i (i = 1, 2) determined by testing.
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