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head pressure 排出壓力。

head register

The penetration test study the disturbance of soil in difference location . by using finite element method , the paper study the stratum movement and the earth surface deformation caused by pipe jacking , analysis the construction parameter such as head pressure , deflexion , friction force impact on earth surface deformation , give the distributing rule and range of additional soil pressure in soil 采用有限元計算分析的方法,對頂管施工引起的地層運動及地表位移進行研究,分析了機頭土壓力、機頭偏斜、摩阻力等不同施工參數對地表變形的影響以及附加應力在土中的分布規律和影響范圍。

The valve seat shall be an elastomeric seal that will permit seating at low - head pressure , and an arrow shall be molded on the valve body for permanent visibility to indicate the intended direction of flow 閥座應該是彈性密封,它使得閥座處于較低的排出壓力下,箭頭應該永久性清晰可見地模鑄在閥體上,標明計劃的流向。

This paper analysed working principles and controling features of water lifts about the head pressure transition . plc was used to operate controling system so as to work the system well 摘要對水頭差壓力轉換提水裝置的工作原理及控制特點進行了分析,使用可編程控制器( plc )控制系統運行,使系統很好的工作。

Equally effective in checking back flows from head pressure on the discharge or suction sides of pump 無論是泵的排泄口的排出壓力,還是泵的吸入口,其流體止回的效果都是相同的。

Set head pressure , split flow , and septum purge flow to appropriate levels 設置相應的柱頭壓、分流比、隔墊吹掃。

Abnormal well head pressure of high productivity gas wells in luojiazhai 羅家寨高產能氣井測試井口壓力異常分析

Standard specification for reinforced concrete low - head pressure pipe metric 鋼筋混凝土低水頭壓力管的標準規范

Standard specification for reinforced concrete low - head pressure pipe 鋼筋混凝土低水頭壓力管標準規范

See table b for nominal head pressure 常規地柱頭壓參考表b 。

Supply pressure is greater than static head pressure 供水壓力大于落差壓力。