扫描之间的休眠时间会根据主机内存大小调整。
The sleep time between scans is adjusted according to host memory size.
最后，我们添加任意30秒的休眠时间，确保两个subshell完成之后命令序列完成。
Finally, we'll add an arbitrary 30-second sleep to ensure the command sequence finishes after the two subshells do.
通过设计不同的休眠时间分布函数，以此来考察各不同分布函数所产生的聚合链的分子量分布情况。
By designing the different dormant time distribution function, so as to represent the different distribution functions arising from the molecular weight distribution of polymer chain.
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