在一些更大的系统中，例如那些使用很长的传送带或管道系统，应该对流程图和鉴定阀门的管道系统图和书面的清洗程序进行检查。
In larger systems, such as those employing long transfer lines or piping, check the flow charts and piping diagrams for the identification of valves and written cleaning procedures.
按照流程图进行管道系统设计。
介绍了PR- 1管道机器人的系统结构以及可切换手动、机动双控制系统，并给出了控制系统的硬件原理图和软件框图。
The system structure and its dual- control system of PR- 1 In- Piping robot is presented in this paper. The hardware and software block diagram of control system is also given.
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