water discharge pressure 中文意思是什麼

water discharge pressure 解釋
排水壓力
  • water : n 1 水；雨水；露；〈常作 pl 〉 礦泉，溫泉；藥水。2 〈常 pl 〉水體；水域；水道；海；湖；河；海域；...
  • discharge : vt 1 發射（炮等），打（槍），射（箭）。2 起，卸（貨）。3 排泄，排出，放出（水等）。4 釋放；解除，...
  • pressure : n 1 壓；按；擠；榨。2 【物理學】壓力，壓強；大氣壓力；電壓。3 精神壓力，政治[經濟、輿論等]壓力。4...
  1. The square pattern has been obtained for the first time in dielectric barrier ar / air discharge at atmospheric pressure by using the double water electrodes and its spatio - temporal dynamics is measured by optical method. the phase diagram of pattern types as a function of air concentration and applied voltage by fixing other parameters is given

    本論文採用特殊設計的雙水電極介質阻擋放電實驗裝置，首次在氬氣與空氣的混合氣體中獲得了大氣壓常溫下的穩定正方網格斑圖，並對其進行了時空動力學測量。
  2. In this thesis hydraulic experimental studies and theoretical analyses on the vortex - flow drop shaft were conduced and the following results were accomplished : ( 1 ) in the model test some hydraulic characteristics including the shape of air core in the center of the drop shaft, the radial distribution of water flow velocity and the distribution of pressure on the wall of the drop shaft were measured under the condition of high water head above 250m and large discharge above 1400m3 / s. ( 2 ) a kind of computational method for the spiral water flow in the air core region of drop shaft was discussed and applied and the results agree the experimental data well. ( 3 ) the total ratio of energy dissipation in the drop shaft can reach 90 % and the energy dissipation in every region was discussed quantitatively

    本文通過試驗研究與理論分析對旋流式豎井泄洪洞應用於高水頭、大泄流量情況時存在的一些水力學問題進行了研究和探討，取得以下主要成果：一、結合小灣工程導流洞改建，對高水頭（ 252m ） 、大泄流量（ 1400m ~ 3 s ）條件下旋流式豎井中的水流運動特徵進行了比較全面的測量，包括空腔形態、徑向流速分佈及井壁壓強等；二、提出了豎井空腔段螺旋水流水力計算方法，其計算結果與實測值吻合良好；三、利用試驗與計算結果，對旋流式豎井的消能機理進行了探討，對豎井各部分的消能能力有了總體認識；四、對豎井下部消力井的合理井深進行了優化試驗研究，發現消力井合理深度為0 . 9d左右；五、通過試驗研究，歸納出豎井水流總摻氣量估算方法，為導流洞排氣方案的設計提供了參考依據；六、在高水頭、大流量條件下，豎井空腔段下部流速很高，盡管水流螺旋運動引起的離心力可以確保井壁壓強保持正壓，但空化數依然較低，因此豎井的空化空蝕始終是工程界關注的重大問題。
  3. ( 4 ) through the hydraulic property experiment of micro - hole lateral pipes of simple sdi in air, it was found that the average pressure of 60 mitre length lateral pipes was at the position of per 40o / o ~ ~ ~ 50 % of the effectual pipe length from the fist micro - hole, major pressure - loss was occurred at the ahead part of half pipe. the pressure uniformity reduced with orifice aperture ? increasing, and the relationship between pressure uniformity and initial water pressure was poor. running under the initial water pressure of 1. 5 meter, the discharge uniformity reduced with orifice aperture ? increasing, and when the orifice aperture smaller than or equal 1. 0mm, irrigation uniformity could achieve above 0. 6

    （ 3 ）通過對空氣介質中簡易地下滴灌的微孔毛管試驗研究發現： 60m管長的毛管平均壓力水頭的位置基本上在距第一孔口的有效管長40 - 45的地方；大部分水頭損失發生在毛管的前半部分；壓力均勻度隨孔徑的增大而減小，但與初始工作水頭關系不密切；在1 . 5m以下的工作壓力下運行，沿程出流均勻度隨孔徑的增大而降低，當孔徑不大於1 . 0mm時，灌水均勻度可以達到60以上；當孔徑大於等於1 . 2mm時，灌水均勻度低於50 。
  4. When a series 994 backflow preventer is installed for dead - end service applications, discharge from the relief vent may occur due to water supply pressure fluctuation during static no - flow conditions

    當系列994防迴流閥安裝在終端應用場合時，由於在靜止無流動情況下水供應壓力波動可能會從安全閥排放口產生排放。
  5. Pressure relief valves should be tested periodically to ensure that the product has not been affected by corrosive water conditions and to ensure that the valve and discharge piping have not been altered or tampered with

    壓力安全閥應該定期進行測試，以確保安全閥不會受到腐蝕性水環境的影響，確保安全閥和排泄管道不被篡改或損壞。
  6. Warning : reinspection of t & p relief valve : temperature and pressure relief valves should be inspected at least once every three years by a licensed plumbing contractor or authorized inspection agency, to ensure that the product has not been affected by corrosive water conditions and to ensure that the valve and discharge line have not been altered or tampered with illegally

    警告：重新檢查溫度壓力安全閥：溫度壓力安全閥每年應該由有資格證書的管道承包商或經過批準的檢查機構來至少檢查一次，以確保這種產品不會受到腐蝕性水的影響，確保閥門和排泄管道不會被不合理的更換或損壞。
  7. Reverse osmosis is in a salt water such as raw water than natural infiltration to exert greater pressure on the pressure and make the water from the high concentration side infiltrate low concentrations party to the original edema water pressure to the membrane elements on the other side into pure water and raw water minor impurities, colloid, organic matter, heavy metals, bacteria, viruses and other harmful substances and are all retained from the sewage discharge into export

    反滲透就是在有鹽份的水中如原水施加比自然滲透壓力更大的壓力，使水由濃度高的一方滲透到濃度低的一方，把原水腫的水分子壓到膜的另一邊變成純凈水，而原水中的細微雜質膠體有機物重金屬細菌病毒及其他有害物質都統統截留下來並經污水出口排放掉。由於反滲透膜的孔徑僅0 . 0001
  8. Based on experimental result of energy dissipation and scour protection for downstream of spillway at yu jian kou power station, this paper discusses the flow characteristics, aerated characteristics of flaring gate pier for low dam pivot, the influence on pressure of dam surface and the result of energy dissipation for flaring gate pier. it is put forward to be an available method to solve the problems of energy dissipation and scour protection for depth of covering strata, poor geologic condition and weakness of resistance to scour capability under reasonable use of flaring gate piers and auxiliary dissipaters. thus, a new method is obtained for release of floodwater and energy dissipation of low dam pivot which are provided with low water head, great unit discharge and low froud coefficient. it may be used for reference for design and test workers

    結合魚劍口電站壩下消能防沖試驗研究成果，對低壩樞紐寬尾墩的水流特點、摻氣特性、寬尾墩對大壩泄流能力和壩面壓力的影響以及寬尾墩的消能效果等問題進行了初步探討，提出了合理地使用寬尾墩結合輔助消能設施可有效地解決壩下覆蓋層深，地質條件差，抗沖能力弱的低壩樞紐的消能防沖問題，從而為具有低水頭，大單寬流量，低佛氏數特點的低壩樞紐泄洪消能開辟了一條新途徑，可供有關低壩樞紐設計與試驗工作者借鑒與參考
  9. The shahe pumped - storage power station with two 50mw reversible units has been in good conditions on general since it was put into operation, but there still were some defects, such as the failure of unit ' s contemporaneous device, the insufficient cooling water discharge and pressure, and the failure of static frequency converter and excitation overcurrent

    摘要沙河抽水蓄能電站兩臺50mw可逆式機組自投運以來，總體情況良好，但是也出現了一些缺陷，如機組同期裝置故障，機組冷卻水流量或壓力不足，靜止變頻器故障，勵磁過電流故障等。
  10. By applying related theory of gas discharge and mathematical statistics, this paper more in - depth and systemic study the influence of the length of air gap, ice state, water conductivity and air pressure on the inception corona and pulse discharge characteristics, included the discharge frequency, discharge amplitude and time interval

    根據試驗結果，用氣體放電和數理統計方法，分析了覆冰水電導率、冰的狀態（乾冰和濕冰） 、空氣間隙長度、氣壓和施加電壓等參數的變化對間隙模型的起始放電電壓、脈沖放電特性、放電頻率、放電幅值和時間間隔等的影響。
  11. Relief vent will discharge water when, during no - flow periods, ( 1 ) the first check valve is fouled or ( 2 ) the inlet pressure to the device drops sufficiently due to upstream pressure fluctuations

    如果在無流動期間，安全閥排氣口有水排出，則原因可能是， （ 1 ）第一止回閥受到污染，或（ 2 ）由於上游壓力波動造成裝置的進口壓力下降太大。
  12. The check calculation and tests for the water supply system showed that its main reason is large in the resistance of pipelines and low in the discharge and pressure of pump

    通過對供水系統的校核計算和測試表明，主要是管網阻力大，水泵流量和壓力偏小所致。
  13. ( 2 ) the emitter discharge of simple subsurface drip irrigation is greater than the infiltration rate after formed saturate loop in the short time. infiltration rate under subsurface drip irrigation is not only affected by soil texture, original soil moisture content and soil bulk density et al, but also by emitter discharge, which affect by water pressure

    （ 2 ）地下滴灌的灌水器出流量一般在較短時間內形成飽和圈后，土壤入滲速率不僅受到土壤質地、土壤初始含水率、土壤容重等因素的制約，而且還與影響灌水器出流速率的壓力水頭有關。
  14. Fcd. 3 138g : 4ds outer - thread copper pipe union at both ends of the inlet and the outlet this valve uses the principle of two - stage pressure reducing variation and, when to lower the switch valve, the shock from the water pressure to the valve casing shortens the start time of this valve under the highest medium pressure and makes it with the incomparable superiority of energy saving among the pulse - type electric - controlled valves, combining to increase filtered to regulate the discharge function with machine type

    該閥採用二級減壓變化原理，降低開關閥時水壓對閥體等配件的沖擊，提高電磁閥的可靠性和工作壽命，縮短了閥在最高介質壓力下開啟時間，使其在脈沖式電控閥門中具有無可倫比的節能優勢，並在接線上採用密封插件，並增加了過濾器和機械式調節流量功能。
  15. Abstract : based on experimental result of energy dissipation and scour protection for downstream of spillway at yu jian kou power station, this paper discusses the flow characteristics, aerated characteristics of flaring gate pier for low dam pivot, the influence on pressure of dam surface and the result of energy dissipation for flaring gate pier. it is put forward to be an available method to solve the problems of energy dissipation and scour protection for depth of covering strata, poor geologic condition and weakness of resistance to scour capability under reasonable use of flaring gate piers and auxiliary dissipaters. thus, a new method is obtained for release of floodwater and energy dissipation of low dam pivot which are provided with low water head, great unit discharge and low froud coefficient. it may be used for reference for design and test workers

    文摘:結合魚劍口電站壩下消能防沖試驗研究成果，對低壩樞紐寬尾墩的水流特點、摻氣特性、寬尾墩對大壩泄流能力和壩面壓力的影響以及寬尾墩的消能效果等問題進行了初步探討，提出了合理地使用寬尾墩結合輔助消能設施可有效地解決壩下覆蓋層深，地質條件差，抗沖能力弱的低壩樞紐的消能防沖問題，從而為具有低水頭，大單寬流量，低佛氏數特點的低壩樞紐泄洪消能開辟了一條新途徑，可供有關低壩樞紐設計與試驗工作者借鑒與參考
  16. Lay - flat water discharge hose is light in weight, and flexible with good cold and hot resistance, high working pressure, it is ideal tool for pump, water discharge in agriculture and building

    質輕，柔軟，存放佔用用空間小，耐候性好，使用壓力高，是水泵的配套用管，農業灌溉，建築工程排水的理想管材
  17. Quick closing valves, water hammer or supply pressure fluctuations can cause intermittent discharge

    迅速關閉閥門，水錘或供應壓力波動可能導致間歇性排放。
  18. Study on the pressure characteristics of pulsed discharge in water

    水中脈沖放電的壓力特性研究
  19. The technical water supply system for the shahe pumped - storage power station has the problem of insufficient pressure and discharge

    摘要沙河抽水蓄能電站技術供水系統存在壓力和流量不足的問題。
  20. Some guidelines differing from the domestic norm such as the decision of water discharge of asf system ; the setup of alarm and pressure valves, the layout of pipeline network and the distribution of sprinklers are described

    介紹了在自動噴水滅火系統設計中，有關設計水量的確定，報警閥、壓力開關的設置，管網及噴頭的布置等方面與國內常規作法的不同之處。
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