美国面临两个的挑战。一个是周期性的问题：经济运行缺乏潜在增长力，另一个是结构性问题：太依赖消费以及财政支持。
America has both a cyclical challenge-the economy is operating far below potential-and a structural one: it depends too much on consumption and fiscal support.
Thread1是一个周期性线程（扩展WatchedPeriodicThread），运行10 个迭代后由于 “意外”异常而终止。
Thread1 is a periodic thread (extends WatchedPeriodicThread) that runs for 10 iterations and then dies because of an "unexpected" exception.
如果历史记录文件比较大，您可以首先通过管道传输到tail来运行周期性的检查，例如，要检查最后的1,000条命令，可以尝试使用。
If your history file is large, you can run periodic checks by piping to tail first — for example, to check the last 1,000 commands, try.
Thread2是一个简单的周期性线程(扩展WatchedPeriodicThread)，它会一直运行下去。
Thread2 is a simple periodic thread (extends WatchedPeriodicThread) that continues to run forever.
然而现在科学家称大灭绝的周期性实际上证明涅墨西斯星球理论是错误的，因为随着时间的推移，在和其他星球的相互作用下，星球的运行轨迹会发生改变。
But now scientists claim that the regularity of the mass extinctions actually disproves the Nemesis theory because its orbit would have changed over time as it interacted with other stars.
就像自然一样，气候风险的运行同样具有周期性。
首先，这是世界经济运行周期性调整的结果。
First, it is the world's economic operations cyclical adjustment results.
认为，积极的短期政策不能改变整体运行的经济周期性。
Believe that the positive short-term policies can not change the cyclical nature of the economy as a whole run.
近十几年来我国宏观经济运行周期性波动十分明显。
In more than ten years the periodic fluctuation of China's macro economy operation is very obvious.
速度差各分量的变化具有很明显的周期性且与卫星轨道的运行周期相吻合。
The variations of velocity difference have obvious periodicity, which coincides with the satellite orbit period.
然而现在科学家称大灭绝的周期性实际上证明涅墨西斯星球理论是错误的，因为随着时间的推移，在和其他星球的相互作用下，星球的运行轨迹会发生改变。
Butt now scientists claim that the regularity of the mass extinctions actually disproves the Nemesis theory because its orbit would have changed over time as it interacted with other stars.
采用储能式飞轮结构能改善目前的运行状况，使周期性速度波动趋于平衡均匀；
It found that adoption of energy storage flywheel structure could improve the current operation situation and make the periodic speed fluctuation tend to be balanceable and homogeneous.
周期性信号是机械设备运行过程中一类广泛存在的信号，包含系统运行状态的丰富信息，因此有很大的研究价值。
Periodic signal exists greatly in modern mechanical equipments and usually can include lots of fault information, so it's of great research value.
随后斗轮机构及回转机构运行开始取料，变幅机构配合取料作周期性动作。
Afterward the bucket-wheel organization and the swiveling mechanism movement starts to take the material, the amplitude organization matches the conjunction material to make the periodic movement.
坦克履带板着地胶块在坦克的运行过程中，周期性受到压力，拉力，扭转力，很容易因为这些周期性的受力而疲劳失效。
During tank's moving, the rubber in the tracked board is suffered the cyclical pressure, rally, torque. It is very easy to fatigue ineffective because of the cyclical power.
在拜耳法氧化铝生产中粒度依然存在着周期性细化现象，严重影响到拜耳法系统的正常运行。
Periodical attenuation of particles, which interferes seriously with the normal alumina production of Bayer method, exists in the alumina production process of Bayer method.
第二部分对永磁同步电动机运行于周期性负载时的动态性能进行分析和研究。
The analysis and study on the dynamic efficiency of PMSM performing under the various loads.
转炉烟罩是转炉炼钢过程中的主要设备之一，转炉烟道汽化冷却的运行工况随转炉冶炼工艺而周期性、急剧地变化。
The chimney of converter is one of the main equipment in steel-making factories. The boiloff and cooling of cooling water in the chimney tubes change with smelting process rapidly and periodically.
转炉烟罩是转炉炼钢过程中的主要设备之一，转炉烟道汽化冷却的运行工况随转炉冶炼工艺而周期性、急剧地变化。
The chimney of converter is one of the main equipment in steel-making factories. The boiloff and cooling of cooling water in the chimney tubes change with smelting process rapidly and periodically.
应用推荐