A.80% B.100% C.60% D.90%
A.產(chǎn)品產(chǎn)出時數(shù)/日歷時數(shù)×100% B.(產(chǎn)品產(chǎn)出時數(shù)-停工時數(shù))/日歷時數(shù)×100% C.(裝置運行時數(shù)/日歷時數(shù))×100% D.(裝置運行時數(shù)-停工時數(shù))/日歷時數(shù)×100%