| 1. | From time to time a scraper is passed through the pipeline to remove this corrosion .
不时用清管器在油管内穿过，以清除这种锈蚀。 |
| 2. | Pipeline design essential in making pigging plans
制订清管计划方面的管线设计要素 |
| 3. | Piping for pigging systems - part 1 : pipes and elbows
清管装置管道.第1部分:管和肘管 |
| 4. | Piping for pigging systems - part 2 : piping connections
清管装置管道.第2部分:管连接件 |
| 5. | Piping for pigging systems - part 3 : testing prior to commissioning
清管装置管道.第3部分:使用前测试 |
| 6. | Method of cleaning long compressed - gas pipe line between zhengzhou and yima
郑州煤气长输管道的通球清管置换方法 |
| 7. | Dynamic characteristics of cable - stayed pipe bridge on fujiang while pigging
涪江跨越斜拉管桥清管时动态力学特性 |
| 8. | Pressure test of segmental pigging : cleanup sundries , free rust , drainage and exhaust in pipe
分段清管扫线试压：清除管线杂物、浮锈、排水、排气。 |
| 9. | For connection between receiver & launcher and pipe refer to pigging process flow diagram
否则易卡住清管器，收发球筒与管线连接形式见清管工艺流程图。 |
| 10. | The company is specialized in producing pigging instruments , insulation joints and non - standard equipments used in pipelines
公司是生产管道清管设备、绝缘接头以及管道用非标设备的专业股份制企业。 |
