operating hours

同义词释义

1)operating hours,运转小时2)service hours,运转小时3)running hours,工作(运转)小时数4)running hours indicator,运转小时指示器5)service hours counter,运转小时计数器6)engine hour meter,内燃机运转小时计7)engine hour meter,发动机运转小时计8)operation,运转9)translocation,运转10)running,运转