10 請問下列何者並不是主要用來衡量軌道系統機件可靠度之指標?(A) Mean time between failures(MTBF) (B) Mean time to repair(MTTR) (C
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10 請問下列何者並不是主要用來衡量軌道系統機件可靠度之指標? (A) Mean time between failures(MTBF) (B) Mean time to repair(MTTR) (C) Mechanical availability(MA) (D) Mean time to schedule disruption(MTSD)