管，叉，和执行-双向亲子之间的沟通过程。
Pipe, Fork, and Exec - Two Way Communication Between Parent and Child Process.
设计的过程，即沟通方式和沟通过程的体现。
Design process, that is, the process of communication and communication is all about.
在信息沟通过程中，各种各样的因素阻碍着信息传递播的进行。
In the process of information communication, various factors impede the transmission of the information.
在信息沟通过程中，各种各样的因素阻碍着信息传递播的进行。
In the process of information communication, various factors impede the transmission of the information.
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