Pig receiver&launcher device is critical to the operation of pipeline, according to the characteristics of the device, its principle is introduced, the analysis process, this design of the receiver&launcher device play a certain significance% 收发球筒装置对于管道的运行至关重要，根据该装置的特点，介绍了其基本原理，分析了工艺过程，这将对收发球筒装置的设计起到一定的指导意义。
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