连接两节管子(生产油管、套管或衬管等)所用的带螺纹的连接件。
A threaded coupling used to join two lengths of pipe such as production tubing, casing or liner.
带螺纹的工具接头必须经过正确地鉴别，然后被扭转至正确数值，以确保工具管柱牢固可靠而不损坏工具或管子体部。
The threaded tool joints must be correctly identified and then torqued to the correct value to ensure a secure tool string without damaging the tool or tubular body.
在工具和管子的两端安装带螺纹的接头将工具或管子连接起来。
To connect tools or tubulars by assembling the threaded connections incorporated at either end of every tool and tubular.
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