Rotary sprayers use gear driven or impact hammer mechanisms to rotate the spray head in a circle.
使用旋转式喷雾器齿轮驱动或影响锤机制，旋转一圈的喷头。
Ulteriorly, considering the local head loss in inlet opening and pipes junction plays more important role in the calculative results of water hammer pressure calculation of the short pipeline system.
考虑进口及多管道连接处的局部水头损失对短管道系统水击压强的计算结果影响较大。
The perfect hammer head can be obtained by designing technological equipment, using vertical pouring and string casting process in CO2-sodium silicate sand.
采用CO2硬化水玻璃砂无箱立浇串铸工艺，设计工装，可以获得优质健全的锤头产品。
Adopting the method of the solid-liquid composite casting, the new type anti-impact and anti-wear hammer head, in witch the soft material and hard material are alternately arranged, were made.
采用固-液复合铸造的方法，制造出一种软硬材料相间、抗冲击及耐磨性能高的复合锤头。
The economic results changing the head queen and outstanding problem and way solving in electricity liquid hammer reform process has been introduced mainly.
主要介绍了电液锤换头改造模锻锤和空气锤过程中遇到的突出问题及解决的办法。
The paper introduces the protection measures of pumping-off water hammer in the design of high-flowrate high-head long-distance water-delivery booster pump station.
介绍一种大流量高扬程远距离输水加压泵站设计中停泵水锤防护措施。
The paper introduces the protection measures of pumping-off water hammer in the design of high-flowrate high-head long-distance water-delivery booster pump station.
介绍一种大流量高扬程远距离输水加压泵站设计中停泵水锤防护措施。
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