Swivel packing seal assembly is the key of the swivel, whose function directly influences its service life, further more, and affects the drilling speed.
盤根密封是(水)龍頭的關鍵環(huán)節(jié),其性能直接影響(水)龍頭的壽命和鉆井速度。
The wash pipe packing of drilling swivel showed wear-and-tear continually in drilling process due to its structural design.
鉆井(水)龍頭由于結構設計的原因,沖管盤根在鉆井過程中不斷磨損,特別是在高壓泥漿的作用下,盤根密封常常被破壞。
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.
考慮鉆機(水)龍頭和轉盤主軸承工作載荷的模糊性及可靠性要求，應用模糊數(shù)學基本原理求得平均計算載荷，從而計算出主軸承的模糊可靠性壽命。
Effects of Cast Iron and Chromeplate Tap on Over Night Tap Water Quality;
鑄鐵和鍍鉻(水)龍頭對過夜自來水水質的影響
Human-computer interaction problem of tap was discussed from the two aspects: switch device design and flowing angle design.
從開關裝置設計和出水角度設計兩方面探討了(水)龍頭的人機交互問題。