Prolonged high CPU utilization is interesting because it could mean the site is flooded with traffic, and we simply do not have enough hardware capacity to support the load.
The development and utilization of urban underground space in a broad sense mean all underground facilities for utilization of urban underground space and execution of city's function.
城市地下空间的开发利用，广义上讲是利用城市地表以下的空间，发挥城市功能的一切地下设施。
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More programs mean more efficient utilization of the processor.