结果表明，在输油管道停输再启动的基础上，定期对管道进行清蜡，可有效提高管道输送能力。
The author considers that regular wax removing can effectively increase the transportation capability of the pipeline on the basis of restart-up.
清管器指示器或“清管器发讯器”用来探测清管器是否通过、并启动报警装置通知操作人员。
A pig indicator or "pig sig" is used to detect the passage of the pig and alert the operator by tripping a suitable warning device.
清管器指示器或“清管器发讯器”用来探测清管器是否通过、并启动报警装置通知操作人员。
A pig indicator or "pig sig" is used to detect the passage of the pig and alert the operator by tripping a suitable warning device.
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