... ◎ Manhole Survey 沙井测量 ◎ High Pressure Water Jetting 高压水力管道清洗 ◎ Closed Circuit Television Survey (CCTV) 渠道内闭路电视探测 ...
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This paper deals with the determination of technical parameters, operating system and major features of the high pressure water jetting device for descaling of fuel pipes.
文章阐述了用于油管除鳞的高压水除鳞装置的技术参数确定、工作原理及其及主要特点。
The device is designed by means of the jetting principle, and it takes the high-pressure injected water as power fluid to drive the formation fluid returning to the surface.
这种射流洗井器应用射流原理进行设计，利用高压注入水作动力液，抽汲地层液返出。
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