The Korn shell conforms to the Portable Operating System Interface for Computer Environments (POSIX), which is an international standard for operating systems.
Korn shell 符合计算机环境的可移植操作系统接口标准 (POSIX)，这是操作系统的国际标准。
In theory, portable code should not rely on this example code fragment, however, as before, in practice it actually does work on most mainstream computer systems.
理论上，上面的代码不是可移植代码，虽然在大部分的计算机系统上都能正常运行。
The data via wireless communication module is transmitted to data computing systems, that is the computer and portable calculator.
采集到的数据通过无线通讯模块传送给数据计算系统，即手持计算器部分与计算机部分。
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