The purpose of the pipeline pigging is clear in pipe welding of mud, welding slags sundry, for pipeline caliper and normal operation of pipeline to provide security.
管线清管的目的是清除焊接时留在管道内的泥沙、焊渣等杂物，为管线测径和管线正常运行提供保障。
The study makes the flaws of pipeline insulation clear by field investigation and test analysis.
本项研究通过进行现场调研、测试分析，查清了管线保温存在的问题；
A throttle valve must be installed along outlet pipeline when the conditions of work are not clear or stable, this can guarantee operation at the design point.
当工作条件不明或不稳定时，出口管路中必须安装节流阀，以保证泵在设计点运行。
In the suspension method, the force and displacement of pipeline are clear, and the displacement and force point of pipeline are adjusted continuously via the sling.
悬吊法中，管线受力、位移明确，并通过吊索不断调整管线的位移和受力点。
It describes water replacement to clear long-distance LPG pipeline before repairing the pipeline.
叙述在长输液化气管道检修前清理原有的液化石油气所采用的水置换法。
Pipeline in Piper nigrum Linn were identified by TLC with clear and reproducible spot, the content of pipeline in extractor was determined by HPLC.
本研究采用薄层色谱法（TLC法）对胡椒提取物中的有效成分胡椒碱进行鉴别分析，结果斑点清晰、重现性较好。
If you do not clear in time, it will cause the pipeline corrosion and even produce rupture and leakage.
如果不及时疏通，会引起管道的腐蚀，甚至产生破裂和泄漏。
In the testing work that showed a clear shape of wall and location of the defect can be visual display pipeline status, and to improve the efficiency of inspection.
在检测工作中清晰地显示管道内部缺陷形状及其位置可直观反映管道状况，并提高检测的工作效率。
In the testing work that showed a clear shape of wall and location of the defect can be visual display pipeline status, and to improve the efficiency of inspection.
在检测工作中清晰地显示管道内部缺陷形状及其位置可直观反映管道状况，并提高检测的工作效率。
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