試驗水頭 的英文怎麼說

中文拼音 [shìyànshuǐtóu]
試驗水頭 英文
test head
  • : 名詞(古代占卜用的器具) astrolabe
  • : 動詞1. (察看; 查考) examine; check; test 2. (產生預期的效果) prove effective; produce the expected result
  • : 名詞1 (由兩個氫原子和一個氧原子結合而成的液體) water 2 (河流) river 3 (指江、河、湖、海、洋...
  • 試驗 : trial; experiment; test
  • 水頭 : waterhead; head; flood peak水頭落差 head fall; 水頭坡降 water table gradient
  1. Because of the technical complexity of the turbine for the three gorges project and on the basis of several important technical problems which have been defined in the international bidding documents for 14 generating units in the left bank power station, the owner of the project has decided another some important technical problems based on appraisal and comparison in the bid appraisal stage after the bidding documents are analyzed and the tender documents are cleared by the tenderers

    由於三峽工程輪機技術上的復雜性和挑戰性,在左岸電站14臺機組國際招標文件已明確了若干重大技術問題的基礎上,在機組議評標階段,對招標文件進行分析和投標商對投標文件進行澄清說明后,經評議比選,業主又決策了幾個重大技術問題,主要有:輪機設計的確定,負傾角葉片輪機的應用,兩套力設計,舍棄初期轉輪,蝸殼進行等。
  2. A calculative formula and experimental study on loss - of - head of taper nozzle

    圓錐形噴嘴損失的計算公式與研究
  3. The additional flow is formed by the device of dentoid baffle, and the application of the device of dentoid baffle cooperated with a stilling basin has been investigated by systematic model tests. based on the research results, the hydraulic problems such as the characteristics of hydrodynamic pressure and cavitation on the head of the denotid baffle, the properties of flow under the condition that the device of denotid baffle is used with a stilling basin, the hydraulic computation about a stilling basin, the estimation of energy dissipation and its various affection factors, the mechanism and effect of energy dissipation, and distributions of velocity and pressure and aerating concentration, etc, have been analyzed ; the method and step of hydraulic design of device of denotid baffle by which the additional flow is produced has also been proposed

    文中利用齒墩設施實現附加射流,對齒墩設施與消力池聯合應用進行了大量的和系統的模型,分析研究了中低佛勞德數條件下,齒墩墩的動壓強及空化特性,齒墩設施與消力池聯合應用時的流態特性,消力池的力計算,消能量的估算及其各種影響因素,消能機理和效果,消力池內的流速、壓強特性,摻氣濃度分佈等力學問題,並提出了實現附加射流齒墩設施的力設計方法和步驟。
  4. Energy consume, electric strength, insulation resistance, ground conductivity, leakage current, microwave leakage, power input, normal temperature, humidity treatment, glow wire, horizontal flame, vertical flame, tracking, ball pressure, rainproof, water splash, dustproof, salt fog, endurance, motor load test, cord flexing, cord pulling, pull & torque test, lamp replacement, construction check etc

    能耗、電氣強度、絕緣電阻、接地連續性、泄漏電流、微波泄漏、功率、溫升、濕熱、灼熱絲、平燃燒、垂直燃燒、漏電起痕、球壓、防雨淋、防濺、粉塵、鹽霧、耐久性(壽命)、電機負載、電源線彎折、電源線提拉、拉扭力測、燈互換性、安全結構檢查等。
  5. Tongbai county of henan province is one of the high - epidemic areas of bovine theileriosis. in 1985, gelatin - protected schizont cell vaccine for 20, 000 cattle was introduced. from ningxia institute of animal husbandry and veterinary medicine against theileria annulata. on the basis of regional tests, the vaccine was applied throughout 16 townships of the county. the annual investigation showed that the safety of the vaccine was 100 %. among the 15, 000 cattle ( including 4, 500 water buffaloes ) inoculated with the vaccine, only 3 cattle suffered from theileriosis. the incident rate was 0. 02 %. however of the 3600 un - inoculated cattle, 2060 heads suffered from the disease. the incident rate was 5. 7 %. the effective protection reached 99. 98 % with a significant social and economic effect

    河南省桐柏縣是牛環形泰勒蟲病流行的多發區,對養牛業危害十分嚴重, 1985年該縣從寧夏農林科學院畜牧獸醫研究所引進「蟲苗」 2萬份,在區域的基礎上在全縣16個鄉(鎮)進行了大面積防疫注射,經年終統計表明:蟲苗安全性100 % ,注苗15000(其中有牛4500) ,發病3,發病率0 . 02 % ;未注苗36000,發病2060,發病率5 . 7 % ,實際有效保護率達99 . 98 % ,取得了明顯的社會經濟效益。
  6. Abstract : tongbai county of henan province is one of the high - epidemic areas of bovine theileriosis. in 1985, gelatin - protected schizont cell vaccine for 20, 000 cattle was introduced. from ningxia institute of animal husbandry and veterinary medicine against theileria annulata. on the basis of regional tests, the vaccine was applied throughout 16 townships of the county. the annual investigation showed that the safety of the vaccine was 100 %. among the 15, 000 cattle ( including 4, 500 water buffaloes ) inoculated with the vaccine, only 3 cattle suffered from theileriosis. the incident rate was 0. 02 %. however of the 3600 un - inoculated cattle, 2060 heads suffered from the disease. the incident rate was 5. 7 %. the effective protection reached 99. 98 % with a significant social and economic effect

    文摘:河南省桐柏縣是牛環形泰勒蟲病流行的多發區,對養牛業危害十分嚴重, 1985年該縣從寧夏農林科學院畜牧獸醫研究所引進「蟲苗」 2萬份,在區域的基礎上在全縣16個鄉(鎮)進行了大面積防疫注射,經年終統計表明:蟲苗安全性100 % ,注苗15000(其中有牛4500) ,發病3,發病率0 . 02 % ;未注苗36000,發病2060,發病率5 . 7 % ,實際有效保護率達99 . 98 % ,取得了明顯的社會經濟效益。
  7. 2. based on the results of experimental data of the tailrace surge tank of yi xing pumped - storage station in jiangsu province, this research investigates the methods for the head loss coefficients of throttled surge tank with linking pipe by means of the method which incorporates experimental results with theoretical analysis

    結合江蘇宜興抽蓄能電站尾調壓室力模型成果,採用理論計算與模型結果相結合的方法,對有連接管的阻抗式調壓室局部損失系數的計算方法進行了討論。
  8. 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

    本文通過研究與理論分析對旋流式豎井泄洪洞應用於高、大泄流量情況時存在的一些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( 252m ) 、大泄流量( 1400m ~ 3 s )條件下旋流式豎井中的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力計算方法,其計算結果與實測值吻合良好;三、利用與計算結果,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研究,發現消力井合理深度為0 . 9d左右;五、通過研究,歸納出豎井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、大流量條件下,豎井空腔段下部流速很高,盡管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。
  9. To provide necessary data for design bypass pipe, an enlargement to bi liu river reservoir, the following problems have been studied by hydraulic model and theoretical analysis : the energy losses in water head of the bypass pipe system and of the flow - control valve and their scale effects, measurement and calculation of the discharge of the bypass pipe system during the bypass pipe system operation with and without the new water power station, the hydraulic characteristics of the water tunnel and draw - off pipe, the flow rate of the aqueduct bridge and the draw - off pipe and the water elevation of the flow in the aqueduct bridge during the old water power station operation with and without the new water power station

    大連市碧流河庫供工程取部由引渡槽、節制閘、進閘、泄閘等建築物組成。由於本工程場地條件限制,增設旁通管后布置非常緊湊,管道急轉角度大且轉彎距離較小,對于管內流流態是否滿足要求,需要經過模型進行論證,以確保工程的可靠性。旁通管具有上與泄要求,對其過流能力也要經確定,為碧流河庫增建旁通管設計提供依據。
  10. Automatic sprinkler system requirements and methods of test for sprinklers

    的技術要求和方法
  11. Colour coding of taps and valves for use in laboratories

    室用和閥門的顏色編碼
  12. The incident wave height h1 / 3 is in the range from 0. 1m to 0. 25m, and the peak period tp in the range from 1. 0s to 2. 0s. the ratio of s / h1 / 3, which refers to the subface level of wharf deck ( s ) to the incident wave height ( h1 / 3 ), is between - 0. 1 and 0. 7. three different shore connecting types : open - piled, permeable slope with armored 1ayer of dolosse b locks and impermeable slope with armored layer of concrete plate, are set in the experiment for the research on the effects of boundary condition with different shore connecting types on the wave impact

    本文的物理模型在大連理工大學海岸和近海工程國家重點實室的大波流槽中進行,中選用的隨機波靶譜為改進的jonswap譜,入射波波高h _ ( 1 / 3 )范圍為0 . 1m 0 . 25m ,譜峰周期t _ p范圍為1 . 0s 2 . 0s ,碼面板的相對凈空(碼面板底面距離靜面的距離s與入射波波高h _ ( 1 / 3 )的比值)范圍為- 0 . 1 0 . 7 ,其中s / h _ ( 1 / 3 )為負值時表示碼面板底面位於靜面以下。
  13. Falling head permeability test

    滲透
  14. Falling head permeability

  15. Preliminary conclusions are got through the analysis of the experimental data such as effect of the ice velocity on the ice force, ratio of components of forces when ice sheet acting on the vertical bank - head, ice force ratio of vertical to 45 incline as well as ratio of level ice force to the vertical ice force when acting on 45 incline

    數據諸如冰速對冰力的影響、冰排作用於垂直面堤時各向分力的關系比、垂直面與45斜面冰力關系比以及作用於45斜面時其平與垂直冰力的關系比等進行了分析,並得到初步結論。
  16. ( 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研究發現: 60m管長的毛管平均壓力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,灌均勻度可以達到60以上;當孔徑大於等於1 . 2mm時,灌均勻度低於50 。
  17. The flow regime, sediment deposition and the loss of head of two head tanks of the sewage pumping station with different dimensions are studied by using a hydraulic model test method

    摘要採用力模擬的方法對兩個不同結構尺寸的污泵站高位井的流流態、泥沙淤積及損失等進行了模型
  18. This thesis will put forward a new design project that aimed at discussing the packing sets of natural - draft counter - flow dry cooling tower, which is the research and application of the spray nozzle. the content mainly includes the experimental study of the application of the jnx - 01 spray nozzle in cooling tower, as well as the heating calculation

    本文將針對自然通風逆流濕冷式冷卻塔中影響效率較大的淋裝置提出設計改進方案,即旋轉式噴濺裝置的研究與應用,內容主要包括jnx - 01型節能旋轉式噴濺裝置及旋轉濺碟式噴在冷卻塔上應用情況的研究及熱力計算。
  19. To determine the bank - head ' s ice force of the lead - navigating bank at key position that faces the ice directly of certain water conservancy, ice model test in reduced scale is designed and carried out based on the local situation on the spot and data observed

    摘要以現場實際工況及觀測數據為依據,以確定某利樞紐關鍵迎冰部位引航導堤堤冰荷載問題為目的,設計並進行了縮尺的冰模擬
  20. Z test conditions for machining centers - part 1 : geometric tests for machines with horizontal spindle and with accessory heads horizontal z - axis

    多工序自動數字控制機床加工中心機床的條件.第1部分:有平軸和附屬的機床的幾何
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