gravity pipeline 中文意思是什麼
gravity pipeline
解釋
重力管路-
In order to know the relationship between gas - content and pipeline ' s pressure drop, the thesis deduces the pressure drop calculating equations based on uniform flow pattern and separating flow pattern. the equations show that pressure drop is made up of three parts, that is, friction resistance effect, gas acceleration effect and the gravity effect. and the research has shown that the gas has little effect on pressure drop. in the horizontal pipeline, the resistance effect must be overmatched the acceleration effect
為探討加入的氣體對管道壓力的影響，本文基於分相流和均相流兩種模型分別推導了三相流管道的壓降公式，表明無論是分相流模型，還是均勻流模型，管道內流體總的壓降是由三項組成的，即摩擦項、加速項和重力項，並得出了加氣對管壓變化不大的結論，所以認為在水平管道中，要獲得有效的減阻，則要使摩擦阻力分量的減小效應大於漿體加氣的加速效應。 -
This model studies the mixture forming process and simulates the specific gravity of the mixture in the pipeline under the different dredging conditions and work parameters, then refers the technical data in a real dredging project to make some simulation examples. in the end, based on this theory, some useful suggestions are given for efficient dredging. 2
該模型研究了在不同的疏浚環境和作業方式下吸口處泥漿的形成過程和計算泥漿比重的模擬模型，隨后結合實際工程數據給出了模擬實例，最後闡述了該模型對優化疏浚作業方法的指導意義： 2 、泥泵與管路系統。 -
Portable intellective transfer facility replaces the ordinary gravity transfusion by using the mini - electromotor, so it can accurately control the speed and quantity of the transfusion. by supervising the transfusion process, when abnormal cases happened, such as a pipeline jam or danger air bubbles, it can rapidly shut down transfusion way automatically in order to prevent the accidents caused by transfusion. the facility could stop automatically when the transfusion end up and reminds patient or paramedic by sound and lamplight
便攜式智能輸液設備以微型電機代替普通的重力輸液，能夠精確控制輸液速度和輸液量;對輸液過程進行監測，當出現如管路堵塞、有危險氣泡等異常情況時，能夠迅速地自動關斷輸液通路，防止輸液事故的發生;輸液結束后自動停機，並通過聲光提醒病人或護理人員;具有攜帶方便，操作簡單等特點。 -
Vacuum, gravity flow, and other solids discharge, according pipeline flow chart meters ( pid ) equipment layout of the elevation requirements
對真空、重力流、固體卸料等情況，一律按管道儀表流程圖（ pid ）的標高要求布置設備。 -
2 ) a simplified sprinkler system which is composed of water source, pipeline pump, pipes, current of water display, nozzle, contral valve, is suitable for our country. and its water is supplied by gravity tank or gravity tank or hydrant system or city 3 ) spray intensity of simplified sprinkler system is 3 l / min. m2, protection area of them is 50m2
3 ）簡易自動噴水滅火系統的噴水強度為3 / min . m2 、保護面積為50m2 、噴頭的安裝間距為3 . 7m等參數。 4 ）簡易自動噴水滅火系統最大設計動作噴頭數為四隻，供水時間宜為30min等。
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