虚拟化可能在利用这样的信息源上存在缺陷，或者说在同一台主机上容纳多个虚拟机运行环境可能会穷尽可用的信息源，导致薄弱的随机数生成机制。
Virtualization might have flawed mechanisms for tapping that entropy source, or hav-ing several VMEs on the same host might exhaust the available entropy, leading to weak random number generation.
获得一个虚拟设备并在VMware上运行(正如您在Xen或KVM上所做的那样)的能力意味着该设备有更多利用机会。
The ability to take a virtual appliance and run it on VMware, as you could on Xen or KVM, means more opportunities for the appliance.
为优化利用，大型机有时被分割成一些小型“虚拟机”，每个虚拟机都能运行自己的操作系统及应用软件。
To make better use of them they were sometimes split into smaller "virtual machines", each of which could run its own operating system and application.
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