对旅游地生命周期演化动力机制的把握影响着旅游地生命周期调控的可操作性。
The understanding of the dynamic mechanism of tourism area life cycle evolution influences the maneuverability of the tourism area life cycle control.
我们认为现在需要对不断演化的系统的更长生命周期（在这个周期中主要演化的元素是软件）重新阐释我们的最佳实践了。
We think it's time to re-articulate our best practices for the broader lifecycle of continuously evolving systems, in which the primary evolving element is software.
气温变化周期是根据氧同位素测定的大量远古温度记录而推演出来的。 气温变化周期与人类演化进程的对照，暗示“黄金时期”与气候急剧波动而短暂的时期相对应。
What marked out this period was a greater range of recorded temperatures, suggesting it was a time of rapid but short-lived fluctuations in climate.
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