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valid time | |||
real time; usable time | |||
currency | |||
the effective time | |||
available time; effective time | |||
effective duration | |||
time of effect | |||
active time | |||
active session; duration of validity; operational use time; up time | |||
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active time | |||
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up-time | |||
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operational use time |
有 效 时间 : 115 phrases in 27 subjects |