Google's Android is an open source operating system.
谷歌的Android系统是个开源操作系统。
The Symbian platform is an open source operating system designed for Nokia smart phones.
Symbian平台是一个专为Nokia智能手机设计的开源操作系统。
It is based on virtualization, extended file systems and open source operating system and software.
基于虚拟化,可扩展的文件系统和开源操作系统及软件。
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