n. idleness
misc. vacancy rate
算法利用网络平均空闲率作为算法的性能评价指标，结合提出的安全度计算公式，寻找传输路径。
This algorithm USES the network average idleness rate as an evaluation parameter, and searches for a transmission path according to a presented safety formula.
城市中心区办公用房的空闲率达到21%，比四年前网络经济泡沫期间的空闲率还要高，更几乎是硅谷的两倍。
The office vacancy rate in downtown stands at 21%-higher than it was four years ago, during the dotcom slump, and almost twice as high as the Silicon Valley average.
探测 JVM 可以知道用去的总内存、空闲内存的百分率、使用内存的百分率等。 可以观察空闲内存的百分率来识别内存漏洞。
Probing a JVM shows total memory used, percentage of free memory, percentage of used memory, etc. Observe the percentage free memory to identify memory leaks.
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