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- scrubbing of pipe lines 管线洗涤
- After initial installation, a discharge from the relief valve opening may occur due to inadequate initial flushing of pipe lines to eliminate dirt and pipe compounds. 在初始安装后，由于管线没有经过正确的初始冲刷，污垢和管道杂质没有消除干净，安全阀的开口可能发生排放。
- Houston has become petroleum and the petroleum and chemical centre, gas network of pipe lines point assembling , centre being also that the astronavigation studies and develops. 休斯敦现已成为石油与石化中心，天然气管道网的汇集点，也是宇航研究和发展的中心。
- This article illuminates the method and application of vertical down welding for gas pipe line,which ensures the welding quality and meets the requirement of pipe design. 对立向下焊接技术的应用情况加以说明,并阐述此方法是如何保证长输管线的焊接质量,满足管道设计技术要求的。
- Three phase parallel connection heating cables are suitable forthethermal insulation of pipes with big diameters, pipe lines in nets and tanks. 三相并联带一般适用于大管径，管网系统管线和罐体的伴热保温。
- This paper analyses the cause of uncleanness of air pipe line on locomotive,and puts forward taking TIG weld ing tech nology in order to ensure that the quality of pipe line on lo como tive achieves design standard. 针对目前机车空气管道内清洁度差的问题,分析其原因,提出采用TIG焊接工艺,以保证机车管道质量达到设计要求。
- color identification of pipe lines 管线颜色标准化
- visual identification of pipe line 管线的视力鉴定
- telemetering system of pipe line 管线遥测系统
- A system of pipes, such as those used in plumbing. 管道，管线，管道网一管道系统，如那些用来铺设铅管的
- Join one section of pipe to the next. 将一段管子与相邻的管子连接起来。
- Join the two sections of pipe together. 将这两段管子连接在一起。
- A length of pipe with a sharp bend in it. （管子的）弯曲处一段有弯曲的管道
- Extraction of full and half of pipe can be chosen. 可整管和半管提取，有效节约试验成本。
- Measure the concave mark and crackle of pipe. 直接测量导管外表面之凹痕及裂纹深度。
- The smell for of pipe tobacco always takes me back to the time I used to sit on my grandfather's knee. 烟斗烟丝的气味总让我回想起我过去坐的祖父膝盖上的那些日了。
- Rout of pipe line design for separating measure radiator in housing 住宅分户计量散热器供暖的管路系统设计
- Discussion on Design of Pipe Line in Coal Preparation Plant 浅谈选煤厂的管路设计
- Their little daughter goes to the landing-place by the river; there she has no end of scouring and scrubbing of the pots and pans. 他们的小女儿到河边的渡头上;她无休无息地擦洗锅盘。
- DEVELOPING TREND OF PIPE LINE STEEL AND ITS PRODUCTION PROCESS 管线钢的发展趋势及生产工艺评述
