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- pipe scale cleanout 除垢
- Relief valve piston O-ring not free to move due to pipe scale, dirt or build up of mineral deposits. 由于管道的划痕、污垢或矿物质沉淀累积造成安全阀活塞O形环无法自由移动。
- The potassium silicofluoride volumetric analysis is recommended and described for the determination of SiO_2 in pipe scale in production of WPA. 介绍采用氟硅酸钾容量法测定湿法磷酸生产中管道结垢物二氧化硅含量的方法及注意事项。
- The cleaning of the pipe scale rich in carbonate in Pingbei Oil Field, was investigated withhydrochloric acid, acetic acid and the mixed acid of both the above. 研究了利用盐酸、醋酸及它们的混酸对富碳酸盐油田设备管垢进行清洗,讨论了酸的浓度、温度及添加剂对其溶垢能力的影响。
- This paper makes systematic analysis on the geneses and harmfulness of pipe scale in urban water pipeline,and advances some measures for preventing the scale in urban water pipeline. 系统地分析了城市输水管道中管垢的成因和危害,并提出了城市输水管道中管垢的防治措施。
- The scaling reason, the composition and content of pipe scale of ammo-nia water pipe in coking factories are studied and meaningful suggestions are putforward to reduce and get rid of it. 本文研究了焦化厂氨水管道的结垢原因;管垢组成及含量等;并为管垢的减少和除去提出了有意义的建议.
- Keywords scale deposit;scale cleanout and prevention;casing rabbler;Longdong Oilfield.; 结垢;清防垢;套管刮垢刀;陇东油田;
- I told her to pipe down but she still babbled on. 我叫她闭嘴，可她还是唠叨个没完。
- The pipe burst and a spout of water shoot out. 水管破裂了，一股水喷了出来。
- On the basis of analyzing the composition of the piped solution and the pipe scaling in a lead-zinc mill,an approach to causes of pipe scaling was made. 本文在分析了一铅锌矿选厂输送溶液及管道结垢成分的基础上，探讨了管道结垢的原因；
- The next year the work went ahead on a large scale. 第二年这项工作就大规模进行了。
- The tail exhaust pipe of the motor vehicle emitted poisonous smoke. 机动车的尾部排气管排出有毒的浓烟。
- The project as being undertaken on a small scale. 这个工程在小规模地进行着。
- A free flow of water came from the pipe. 水从管道里通畅地流了出来。
- This district grew cotton on a large scale. 这个地区过去大量种棉花。
- So be it. We shall smoke the pipe of peace. 好吧，咱们抽袋烟言和吧！
- Scale the fish before cooking them. 烧鱼之前先去掉鱼鳞。
- Gushes of water sprayed out of the pipe. 好几股水流从管子里喷出来。
- Water is spouting out of the pipe. 水正从管子里喷出来。
- He tamped down the tobacco in his pipe. 他把烟丝紧紧摁实在烟斗里。
