他说清洗管道的工人已经工作了整个周末。
你必须先让污水排出去，然后再清洗管道。
First you must drain the dirty water out and then clean the pipe.
要用空气或蒸汽全面彻底地清洗管道内部。
在安装设备之前，应该彻底清洗管道，清除外来杂质。
Pipe lines should be thoroughly flushed to remove foreign material before installing the unit.
安装时，应清洗管道及阀门内腔，不允许有任何异物附着。
Clean the tube and the inside of the valve to remove anything else clung to the former during the installing process.
此后他们要接受长达三小时的严格的考试(题目举例：简述给糖浆管道和糖浆存储罐进行清洗和消毒的流程)。
At the end they are given a stiff three-hour exam (sample question: Describe briefly the process followed in cleaning and sterilizing syrup lines and syrup tanks).
越来越多的人们走出贫民窟，搬进带有硬木地板、洗手间和管道设备的房子， 清洗肮脏的设备越来越多的走进家庭。
As more people move to cities or out of slums, into homes with hard floors, lavatories and plumbing, so the crusade against dirt wins new recruits.
盛装过可燃、易燃气体、液体的各种容器、管道、罐柜等，未经清洗和测爆，没有安全保障时，不准焊、割。
Containers, pipes and tanks which used to fill with flammable gas, liquid without cleaning and measuring, should not be welded and scalpeled.
清洗：检查或更换磨损的阀瓣，断开控制管道的连接，采用钝工具和锤子敲击阀帽上的接片，然后旋松阀帽螺纹。
To Clean: Inspect or replace worn valve disc, disconnect control pipe and unscrew bonnet from valve body using blunt tool and hammer on bonnet lugs.
拆出料管法的优点是管道清洗较干净，水源的流速可以较低、可以暂停。
Demolition material are the advantages of pipe cleaner pipe cleaning, water flow rate can be relatively low, may be suspended.
在一些更大的系统中，例如那些使用很长的传送带或管道系统，应该对流程图和鉴定阀门的管道系统图和书面的清洗程序进行检查。
In larger systems, such as those employing long transfer lines or piping, check the flow charts and piping diagrams for the identification of valves and written cleaning procedures.
目的观察自制医用管道清洗装置的清洗质量和清洗效率。
OBJECTIVE To investigate the quality and efficiency of the self-made apparatus for cleaning medical pipeline.
该管道还自带清洗和冲水系统，来保持管道的干净。
It also has a cleaning and flushing system to keep the pipe clean.
清洗油和气井，管道，套管，地层和设备的组合物及其使用方法。
Cleaning oil and gas well, pipeline, sleeve, stratum and equipment composition and its using method.
气压脉冲法是给水管道清洗的一种既方便、效果又好的方法。
The barometric pulse pressure method is a handy and effectual way for water pipe cleaning .
最后通过对具体实例的计算，说明了清洗煤矿主排水管道具有显著的经济效益。
Through calculation of concrete instance, it is clear that coal mine main drainage pipeline cleaning by high pressure water jet has remarkable economic benefits.
该技术同样适用于石油化工行业油类及其他外档液体产品储运系统的管道清洗。
And equally, it applies in petroleum, chemical industry, oil and other liquid prod - uet's preservation and transportation system's pipeline cleaning.
清洗油和气井，管道，套管，地层和设备的组合物及其使用方法。
Cleaning compositions for oil and gas well, lines, casings, formations and equipment and its methods of use.
对焦化厂循环水管道的化学清洗和防腐处理技术进行了研究，并给出了实施方案。
The technology of chemical washing and anticorrosive treating for pipes of cyclic water in coking factory was studied. and the plan for the implementation is given.
应当在管道和阀门上贴上标签，并且可以被执行清洗过程的工作人员很容易地辨认出。
Piping and valves should be tagged and easily identifiable by the operator performing the cleaning function.
食品加工企业在产品生产过程中，加工设备及管道的清洗非常重要。
Cleaning of the equipment and pipeline is vital in the food processing factory or the following precipitate will affect the food quality.
如果要清洗或更换部件，关闭供应管道，松开锁紧螺母，退出调节螺丝。
To clean or replace parts; shut off supply, loosen lock-nut and back off adjusting screw.
管道过滤器在运行过程中必须定期停车清洗、排污，往往影响系统设备长周期运行。
The pipe filter must be shut down for cleaning and drainage regularly during its operation, and this usually interferes with the long-period operation of the equipment in the system.
研制了一种新型的适合制作管道清洗球的聚氨酯弹性体。
A new kind of polyurethane elastomers suitable to make pipeline cleaning balls was developed.
清洗水泵及管道。
在对空化射流的破坏机理进行分析的基础上，介绍了一种基于空化射流的管道清洗方法。
Based on the analysis of the break mechanism of the cavitations jet, a method of cleaning tubes and pipes based on the principles of cavitations jet is introduced.
储罐和管道要规定清洗、灭菌周期。
清洗范围包括过滤室，过滤元件，过滤室与转向阀之间的熔体管道，以及转向阀通道。
The cleaning scope includes filter room, filter sensor, melt pipe between the filter room and deflecting valve, the deflecting valve passage.
清洗范围包括过滤室，过滤元件，过滤室与转向阀之间的熔体管道，以及转向阀通道。
The cleaning scope includes filter room, filter sensor, melt pipe between the filter room and deflecting valve, the deflecting valve passage.
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