在双代号网络图中，虚工作和实工作有着本质的区别，其主要作用是传递工作之间的逻辑关系。
In the activity-on-arrow network, there are essential differences between positive activity and dummy activity. The main function of dummy activity is to transfer the logical relationship in the work.
文章通过对双代号网络、单代号网络及时标网络的对照及论证，得出虚工作的时间参数可以不计算的结论。
With the demonstration and comparison of activity-on-arrow network and time-scaled network in this paper, proper conclusion is expected to drawn.
看哪，他们和他们的工作，都是虚空，且是虚无。他们所铸的偶像都是风，都是虚的。
Behold, they are all vanity; their works are nothing: their molten images are wind and confusion.
你已经虚席了时间机器的工作原理，时间机器不断的备份细小部分已使它变得巨大。
You have already learned that Time Machine works behind the scenes to "thin" your backups to keep them from being too large.
对工作在深度负反馈状态的运算放大器电路，常采用虚短虚断技术得出的理想参数代替实际参数。
To the operational amplifiers circuits which works at deep negative feedback mode, we adopt ideal parameter deduced form ideal model instead of actual parameter usually.
MMU的功能是控制各种存储系统的工作并将虚地址转换成物理地址，以及控制存储器访问权限。
The functions of the MMU are to control the various memory systems, translate the virtual addresses into physical addresses and control the access permission.
本文通过递归建立虚链路的路由思想，可以完成目标定位和信息传输路径的选取工作。
In this paper, the work that locating target and searching information transmission path can be achieved via the thinking of creating virtual link recursively.
本文通过递归建立虚链路的路由思想，可以完成目标定位和信息传输路径的选取工作。
In this paper, the work that locating target and searching information transmission path can be achieved via the thinking of creating virtual link recursively.
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