Yet, faced with sustained challenges like the BP oil spill, Obama has struggled to calibrate his inner clock and rouse himself to palpable intensity and action.
不过，在面对类似BP石油泄漏这样的持续性难题时，奥巴马在努力适应并唤起斗志和行动方面有些力不从心。
Jet lag is the best known circadian rhythm disorder, but this sensitive inner clock can also be disrupted by changes in routine resulting in an erratic sleep schedule.
时差是我们最为熟悉的生理节奏失调现象，但敏感的生物钟还会因我们睡眠时间不稳定而陷于混乱。
More than 200 police from Inner Mongolia, Hebei and Beijing worked around the clock to break up the jam, state-run China Radio International reported.
据官方媒体中国国际广播电台报道，来自内蒙古、河北及北京的200多名警察为清除京藏高速大拥堵日以继夜地工作。
Generally sampling pulse is produced by the control of clock inner device.
一般采样脉冲都是在装置内部时钟的控制下产生的。
Features time range of 60 minutes by minutes and seconds, 8-in dial with two sets of Numbers (use inner circle of small Numbers as stop clock) and selective automatic buzzer alarm.
时间范围在60分钟，8英寸刻度盘，两排数字(停止时使用内圈的小数字)和可供选择的自动闹钟。
Features time range of 60 minutes by minutes and seconds, 8-in dial with two sets of Numbers (use inner circle of small Numbers as stop clock) and selective automatic buzzer alarm.
时间范围在60分钟，8英寸刻度盘，两排数字(停止时使用内圈的小数字)和可供选择的自动闹钟。
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