under water operation 中文意思是什麼

under water operation 解釋
水下作業
  • under : adv 1 在下,從屬著,服從著。 bring under get under keep under 等〈參看各該動詞條〉。 The ship wen...
  • 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;...
  • operation : n 1 動作,行動,活動;業務,工作;作用。2 效果,效力;有效范圍,有效期間。4 【數學】運算;【醫學...
  1. This article aims at the boiler ' s problems in operation : 1 ) under nominal load, the smoke temperature at the outlet of hearth reaches 1200, far more exceeds 1050 the original designed temperature. this will always result in slag inside boiler and the temperature of overheater ' s pipe superheat, so that boiler cannot take nominal load and all these influence boiler ' s nomal operation heavily, 2 ) this article also studied the reason why the assistant oil becoming necessary when coal changes. during the nomal operation, many factors ( makeup of combustor and its disposal, smirch and encrust of water wall, excessive air coefficient, temperature of primary air, coal type and density of coal dust ) can deviate the designed working conditions, then affect the boiler ' s nomal operation

    本文針對該鍋爐在實際運行中存在的問題:在額定負荷下,爐膛出口超溫、低溫段過熱器前煙溫高達936 ,遠遠超過815的設計值;噴燃器四周水冷壁結焦嚴重,過熱器管壁溫度超標,無法帶上額定負荷;甚至有時因燃煤質量的變化,必須投油助燃的嚴重情況進行了分析研究。在實際生產過程中,燃燒器的結構、布置,水冷壁的粘污、結垢,過剩空氣系數、一次風溫、煤種及其濃度變化等許多因素都會偏離鍋爐的設計工況,從而影響爐內的傳熱和燃燒,造成爐膛出口超溫、水冷壁結渣等問題。
  2. The contamination phenomenon of condensate water resulting from condenser leakage in operation of condensating steam turbine with open cycle cooling system by sea - water has been presented, the causes leading to condenser leakage being analysed, and leakage searching method as well as leakage preventing method under operation condition being given

    摘要介紹海水開式循環冷卻的凝汽式汽輪機在運行中因凝汽器泄漏導致的凝結水污染現象,分析凝汽器發生泄漏原因,並給出運行狀態下凝汽器的查漏方法及其防泄漏措施。
  3. Taking into account weather and flood forecast information ; the forecast operation manner is studied under the condition of without the change of the existing flood control standard to realize the conversion of flood control and benefits. ( 4 ) through analyzing runoff and water utilization information during reservoir operation, design flood, and the existin

    水庫汛陽水位動態控制方法研究及其風險分析根據水庫流域天氣預報、流域前期降雨、水庫蓄水、水庫泄水能力和防洪興利要求,利用水庫汛限水位變動范圍,結合洪水預報和短期降雨預報模型,研究水庫汛限水位動態控制方法。
  4. Under water operation

    水下作業
  5. In this paper, the deposition evolution process in qtx reservoir are studied, the incoming water and sediment, the operation data, and the time and space distribution of longitudinal and lateral sedimentation in reservoir are analyzed in detail, and the longitudinal scouring and sedimentation and lateral deformation law in reservoir tidal flat and mainstream under different operation way are summarized in every operation period

    本文以黃河青銅峽水利水電樞紐工程水庫淤積演變過程為研究對象,對青銅峽水庫來水來沙組成、水庫運行資料、水庫縱橫向泥沙淤積時空分佈等進行了較詳細的分析,總結了青銅峽水庫各個運行時期不同運行方式下水庫灘槽縱向沖淤和橫向變形規律。
  6. The paper starts with the reservoir sedimentation, operation mode and catchment runoff characteristics. the study comprises of distributing of runoff and sediment in the catchment, the influence and trend of sedimentation and water storage under different operation mode

    課題研究主要從水庫淤積狀況、運用方式和流域徑流特徵分析入手,闡述了流域徑流、泥沙時段分佈,研究了不同運用方式下水庫沖淤的主要影響因素及變化趨勢,分析了不同運用方式時水庫淤積情況和攔蓄水量。
  7. The company mainly produces stainless steel kitchen equipment 、 stainless steel products, and all kinds of chinese food and western food and cooking equipment 、 work table with under shelf and kitchen cupboard water thought product 、 operation counters 、 cooling and refrigeration equipment 、 kitchen exhaust system and a new air circulating system

    詳細信息本公司主要生產不銹鋼廚房設備、不銹鋼製品以及各式中西餐爐具設備、廚房案臺、貨架、操作櫃、冷凍冷藏設備、廚房排煙系統和送新風系統。
  8. Under the contract processing agreement, the china party provides labour, factory premises, water and electricity facilities for the operation of the china factory to process goods for the company in return for processing fees

    根據來料加工合同,該內地單位提供工人廠房水電設施給內地工廠,以加工該公司貨物,並收取加工費作回報。
  9. On the basis of repeated analyses and verifications, the construction techniques of shed - pipe grouting etc. are adopted therein, with which the tunneling in low - cemented sandy soil is successfully carried out under the condition of higher ground water level, and then both the design and construction are demonstrated to be reasonable and reliable through the actual water delivery operation

    在反復分析論證的基礎上通過採用注漿管棚等施工技術,成功地在高地下水位低膠結度的砂性土中開挖隧洞,實際過水應用表明設計施工是合理可靠的。
  10. In this project, the maximum height of the dam is 81m, but the deep overburden in the riverbed has the depth of 147. 95m which is about two times of the maximum height of the dam body, so the seepage and liquefaction prevention of the dam foundation becomes the key and important problem in the design of the dam project. the static stress and deformation under three different projects - horizontal blanket project, clay core project and asphalt core project - for the dam is analyzed comprehensively. the damage that may be induced by variable factors on the dam body in time of engineering completion and water impounding operation period is seriously studied

    其次,將這一模型用於分析下坂地水利樞紐工程,由於該工程河床覆蓋層深度最深達147 . 95m ,是壩體高度的近兩倍左右,壩基的滲流和液化成為壩體安全主要問題,本文對該壩的三種設計方案即水平鋪層防滲方案、粘土心墻防滲方案及瀝青心墻防滲方案的靜態應力位移及壩體在竣工期、蓄水期等各個階段可能產生的破壞進行了認真研究。
  11. Thirdly, because the depth of the seepage prevention wall of xia ban di dam project has the value of 85m which is the maximum depth in the dam projects in our country, the stress state of the seepage prevention wall is very complicated, the influence of nine modulus for nine kinds of seepage prevention wall material on the stress and displacement of the seepage prevention wall is studied and the rule of the change of stress and displacement with the change of characteristic parameters for seepage prevention wall under time of engineering completion and water impounding operation period is given in this paper

    第三,鑒于大壩基礎混凝土防滲墻深度達85m ,厚度僅為1 . 0m ,防滲規模和工程難度為國內之最,墻體應力比較復雜,本文研究了大壩施工填築竣工期、水庫蓄水運行期防滲墻的應力和變形隨墻體參數的變化而變化的規律,為大壩安全設計及防滲墻墻體材料的選擇提供了理論依據。
  12. These results show that since the existent defects of combustion device structure and its hypothetical circle of contact, these make a poor primary and secondary wind rigidity in operation and a too big actual circle of contact. in addition, the coal used is extreme prone to burn and reside in boiler. under such a condition, the coal powder ignites earlier in a short time and short distance when it leave the jet - combustioning device, and splashes the water cooler, eventually this results in a burned coal residue in boiler

    針對宏偉熱電廠410t / h燃煤鍋爐嚴重結渣問題,對燃煤的結渣性、爐內溫度工況及空氣動力工況等進行實驗研究,由於燃燒器結構和假想切圓選擇的缺陷,使得鍋爐在正常運行時,一、二次風剛性較差,實際切圓過大,加上目前燃用煤質屬于極易燃、易結渣煤質,致使煤粉在離開噴燃器很短的時間、較短的距離內開始著火,並沖刷水冷壁,最終造成爐膛結渣。
  13. According to the geological conditions of baise project, erosive bands and joint fissures, f6 fault and grout curtain are fully simulated to establish 3d numerical model of the dam and its foundation. 3d non - linear fem is used to analyze the stress and strain and to appraise the operation state of both the dam and it ' s foundation under different operation conditions. by overloading the upstream water level and reducing rock strength parameter, the dam foundation ' s degradation process is simulated and the damage pattern and paths are determined, and finally the safety factor is determined

    2 、根據百色的地形地質條件,充分模擬了蝕變帶、節理裂隙、 f6斷層、灌漿帷幕等,較為真實地建立了壩體與地基相互作用的整體三維數值模型;採用有限元法對壩體及壩基在不同工況下的應力應變狀態開展分析,評價各工況下壩基的運行狀態;而後採用超載法和綜合法對大壩穩定性進行分析,模擬壩基的漸進性破壞過程,從而得到壩基在超載和強度下降過程中的破壞模式和破壞發展路徑,最終確定壩基超載安全系數和綜合安全系數。
  14. In order to overcome the disadvantage of 2bps - 2 plastic film mulch seeder with watering apparatus that the operation speed is limited and the moisture evaporation loss is great, according to the theoretic analysis of water movement in soil, this paper offers another watering project - hidden watering under film, designs three different types of watering devices, meanwhile conducts test research with different watering devices in different position the change of the soil moisture content

    本課題針對2bps - 2型坐水鋪膜播種機坐水后,土壤水分蒸發損失大和機組作業速度低的突出問題,通過對水在土壤中運動的理論分析,提出了在行間膜下的暗道式施水方案,圍繞此方案設計了三種坐水部件,並就不同坐水部件在不同施水位置施水后,種子帶土壤含水量的變化進行了試驗研究。
  15. Water snpply enterprise is at once faced with the competition of water supply market when national water supply estate policy is adjusting, it will even face the competition with lange - scale international water supply bloc, it will be a very severe challenge to the water supply enterprise who always stations under the planned economy management system. enterprise must renew the ideological views and the train of thoughts of operation and must think and appraise overall again about the organized system manpowerresource market price profit etc of the enterprise ; it must also know the chance and dangers which is brought from the changes of operation outside environment and must understand the superiority and inferiority of enterprise itself, then makes correct strategy sets out superiority. adjusts inferiority fixes favourable opportunity and defeats difficulty and challenge, so the enterprise and win the victory in competition and get larger and stronger

    國家供水產業政策調整后,供水企業立即面臨供水市場的競爭,甚至直接與國際大型水務集團競爭,這對于長期置身於計劃管理體制之下的供水企業是一個非常嚴峻的挑戰,企業必須更新思想觀念和經營思路,對企業的組織機構、人力資源、市場、價格、利潤等各方面進行一次全面的重新思考和評價,認清企業外部經營環境變化帶來的機遇和威脅,了解企業自身的優勢和劣勢,制定正確的戰略,發揮優勢,調整劣勢,把握機遇,戰勝困難和挑戰,使企業在競爭中勝出,並實現做大做強。
  16. The paper analyzes and studies the reasonable amount of water regulation of the project under the interaction of multi random process by taking huayuankou station of the main yellow river as an example and using serial operation theory

    以黃河幹流花園口站為例,應用序列運算理論,分析研究了在多隨機過程相互作用下,南水北調西線工程合理調水量。
  17. The designed boiler has steady operation situation, with rational framework and boiler heating surface. water walls have sufficient flux under calculated 5 loads

    本鍋爐有較穩定的工況,結構設計及受熱面布置基本合理,在各負荷下受熱面中有較充分的流量。
  18. By the touch free operation infra - red control water only starts to run when there is a hand under the tap

    水頭下有手出現時,無需接觸性操作遠紅外線自動控制水即自動流出。
  19. According to the supply system composed by parallel connection water pump, many kinds of operation proposals in a single pump were put forward to provide the greatest possible flow on both sides of the demarcation point in the scope of the flux changes ; identified the system of pumps, electromotor, speed governor imitate method of characteristics curve of the power device and its rotating speed, efficiency, energy consumption calculation under different condition ; the analytical methods used for the operational plan for comprehensive evaluation of the economic and safety and optimal results

    摘要針對由並聯水泵組成的供水系統,提出了在以單泵可能提供最大流量為分界點的兩側流量變化范圍內具有多種運行方案;確定了在不同工況下,該系統中水泵、電機、調速器特性曲線的擬合方法及其各動力裝置中轉速、效率、能耗的計算式;採用解析的方法對各種運行方案進行了經濟性和安全性綜合評價,並給出最優結果。
  20. Relative water content ( rwc ), operation and development of alternative pathway, the changes in active oxygen species ( aos ) and activities of antioxidant enzymes, and the role of alternative pathway participating in the protection mechanism against environment stress were studied and discussed in wheat seedlings leaves under combined intimidation of water stress and pathogen infection

    摘要以抗旱性和抗病性不同的小麥為材料,以正常生長為對照,觀察了病原菌和水分復合脅迫對小麥葉片相對含水量、活性氧代謝以及對抗氰呼吸的發生、運行的影響。
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