Lab experiments show that such tubing collar is feasible to some degree in preventing corrosion of the screw thread of water cycling pipe, thus extending the service life of water cycling pipe.
经实验室验证，复合接箍对回注水管柱螺纹防腐具有一定的可行性，可以延长回注水油管柱的整体使用寿命。
The heat transfer and flow pass condensation segment in the gravity heat pipe with inner screw thread were investigated.
分析了在重力热管内加内螺纹的方法，研究了重力热管的冷凝段的传热及流动状况。
The connecting pipe and the fixed sleeve pipe are fixedly connected mutually by a screw thread type or a clamping slot type.
接管和固定套管互以螺纹或卡槽式连接固定。
A grab handle is a hollow thin pipe, and a cleaning head is a small spray head which is communicated with a water pipe through a water inlet with a screw thread.
用作握柄的是一根中空细管，清洁头是一个小小的喷头，通过带有螺纹的进水口将其与水管接通。
The pipe joint comprises a joint pipe and a press cover detachably connected with the joint pipe through screw thread, wherein, a clamp ring base is arranged on the head section of the joint pipe;
管接头，该管接头包括接 头管和压盖，压盖和接头管通过螺纹可拆卸式连接，接头管的端头部设置有卡环座；
The pipe joint comprises a joint pipe and a press cover detachably connected with the joint pipe through screw thread, wherein, a clamp ring base is arranged on the head section of the joint pipe;
管接头，该管接头包括接 头管和压盖，压盖和接头管通过螺纹可拆卸式连接，接头管的端头部设置有卡环座；
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