... 共同的旋转轴 common axis of rotation 管的旋转接头 pipe swivel 力的旋转导数 force rotary derivative ...
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wash pipe swivel 冲管旋转接头
steam pipe swivel 汽管旋转接头
Pipe swivel joint 管的回转接头
swivel pipe 旋转接头管 ; 旋转管
swivel pipe joint 旋转管接头
SWIVEL PIPE CLAMP 万向接头
pipe line swivel coupling 管路旋转接头
assembly dredge swivel pipe 船尾排泥管旋转接头
The wash pipe packing of drilling swivel showed wear-and-tear continually in drilling process due to its structural design.
钻井（水）龙头由于结构设计的原因，冲管盘根在钻井过程中不断磨损，特别是在高压泥浆的作用下，盘根密封常常被破坏。
The wash pipe packing of drilling swivel showed wear-and-tear continually in drilling process due to its structural design. The packing assembly was often torn by high pressure mud.
钻井水龙头由于结构设计的原因，冲管盘根在钻井过程中不断磨损，特别是在高压泥浆的作用下，盘根密封常常被破坏。
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