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1)  Longtou springwater
龙头泉水
2)  The fountain is clear at its source .
泉水源头清。
3)  swivel [英]['swɪvl]  [美]['swɪvḷ]
水龙头
1.
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。
2.
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。
3.
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。
4)  Tap [英][tæp]  [美][tæp]
水龙头
1.
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
2.
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。
5)  main-reservoir
龙头水库
1.
The calculation method of the firm power of cascaded hydropower stations system is described in brief not considering up-downriver stations runoff compensation, and this paper puts forward the general calculation method of the firm power of main-reservoir cascaded hydropower stations based on runoff compensation.
简述了一般梯级水电站群不考虑上下游电站径流补偿时系统保证出力的计算方法,在此基础上提出了利用龙头水库进行梯级水电站群径流补偿时系统保证出力的计算模型和通用算法。
6)  feed cock
给水龙头
补充资料:龙头
分子式:
CAS号:

性质:俗称考克,龙头。启闭件(栓塞)绕其轴线旋转的阀门。由阀体、栓塞、填料函等组成。阀体的中心孔内插入一个有孔且可旋转的圆锥形栓塞,当栓塞的孔正朝着阀体的进出口时,流体就可通过栓塞。当栓塞转过90°,栓塞的孔完全被阀体挡住,流体则不能通过栓塞。因而可起启闭作用,也可起调节作用。栓塞颈部装有填料函,以阻止介质渗出并对栓塞施加压紧力。根据结构,又可分为对通、三通、四通等旋塞。优点是结构简单,启闭迅速,全开时对流体的阻力小。适用于含有固体颗粒的流体。缺点是不能精密调节流量,转动栓塞较费力。不适于口径较大及压力、温度较高的管路。

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