Swivel packing seal assembly is the key of the swivel, whose function directly influences its service life, further more, and affects the drilling speed.
盘根密封是(水)龙头的关键环节,其性能直接影响(水)龙头的寿命和钻井速度。
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 mean value of work loads on a shaft bearing of swivel and rotary table is determined by basic principles of fuzzy theory, considering the loads' fuzziness and the requirement for reliability.
考虑钻机(水)龙头和转盘主轴承工作载荷的模糊性及可靠性要求，应用模糊数学基本原理求得平均计算载荷，从而计算出主轴承的模糊可靠性寿命。
Effects of Cast Iron and Chromeplate Tap on Over Night Tap Water Quality;
铸铁和镀铬(水)龙头对过夜自来水水质的影响
Human-computer interaction problem of tap was discussed from the two aspects: switch device design and flowing angle design.
从开关装置设计和出水角度设计两方面探讨了(水)龙头的人机交互问题。