与回接筒配套用于回接尾管的一种专用固井工具。
The tie-back assembly is a special cementing tool for tieback operation.
对于所有真活接类型球阀和球体止回阀，可提供完整的更换筒组件。
Full Cartridge Replacement Kits are available for all True Union style ball valves and ball check valves.
提出了红外加热胶接的思想，并对红外加热胶接技术作了简单阐述。介绍了一种红外加热胶接矿用阻燃、防腐、橡塑风筒布的装置。
Concept and method of gluing technique using ir heating are presented. An apparatus sed for gluing anticorrosive and fire-resistant wind cylindrical cloth in the same method is introduced.
由于增加了气囊，管柱接箍通过胶筒时，液压腔内的压力升高很少。
Since the gas bag is added, the pressure increase within the hydraulic chamber is very slight when the string collar passes through the packing element.
把快绳绑好之后，从大绳上把蛇皮接绳器卸下来。再把棕绳从绞车辊筒上弄下来。
With the fast line tied off, remove the snake from the drilling line, and remove the 1 inch rope from the drawworks drum.
把快绳绑好之后，从大绳上把蛇皮接绳器卸下来。再把棕绳从绞车辊筒上弄下来。
With the fast line tied off, remove the snake from the drilling line, and remove the 1 inch rope from the drawworks drum.
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