工作时间
Working time
work hour
Work time
on-time
up time
uptime
time，up
Time
operating time
active session
uptime
up
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hours of operation
hours of service
running period
running time
Woring time
time， up
Operating
工作制度
Working system
Work system
work rule
Regulation and Rule for Work
Work routine
Routine of Work
work scheme
Work calulation
production optimizing
operating duty
工作任务
work assignment
Working task
work task
assignment
task-based teaching method