負壓區 的英文怎麼說

中文拼音 [fùyāqū]
負壓區 英文
zone of negative pre ure
  • 負 : Ⅰ名詞1 （負擔） burden; load 2 （虧損） loss 3 （失敗） defeat Ⅱ動詞1 [書面語] （背） carry on th...
  • 壓 : 壓構詞成分。
  • 區 : 區名詞（姓氏） a surname
  • 負壓 : [物理學] negative pressure; subatmospheric pressure
  1. On the basis of that, numerical simulations have been carried out on full - scale cube model with three types of parapets. the caparison of with and without parapets shows that three types of parapets can significantly reduce high negative suction peaks on zones susceptible to wind pressure. formulas have been proposed about the height of those parapets

    在此基礎上對方塊模型屋面分別設置3種女兒墻進行了數值模擬，與未設置女兒墻的模擬結果進行了比較分析，結果表明上述女兒墻都能較明顯地降低屋面風壓敏感區的負壓峰值，並給出了相應的女兒墻高度限值公式。
  2. Finally, with caparisons of that three parapets properties cantilevered parapets has been adopt to the steel structure of light - weight buildings with gabled frames, numerical simulations have been carried out with that buildings, results of simulations show that device can also significantly reduce the area - averaged coefficient of wind pressure and high negative suction peaks on zones susceptible to wind pressure. formula has been proposed about the height of that parapet

    最後通過三種女兒墻的性能比較確定對門式剛架設置懸挑女兒墻進行數值模擬，結果同樣表明懸挑女兒墻能明顯地降低門式剛架屋面風荷載敏感區的負壓峰值及屋面風荷載體型系數，並給出了女兒墻高度限值公式。
  3. In chapter 2, the meteorological knowledge, data and the methods of the data processing, related to the study on the atmospheric loads, are simply presented. the model for the perfect gas constant, describes by the relative moisture, is developed. the influences of the variation in the vapor component in the atmosphere on the perfect gas constant are evaluated by using the changing characteristics of the temperature on the surface, its spatial gradient and the barometric pressure

    第二章：簡要介紹大氣負荷研究所需的氣象科學知識、資料及其數據處理方法；建立相對濕度表示的大氣比氣體常數模型，利用地面溫度和空間垂直溫度梯度、壓力變化的規律估算大氣水汽組分變化對比氣體常數的影響；對中國及鄰區的地面氣壓記錄進行了預處理和網格化
  4. Further more, the coherence between circulation and olr are calculated and analyzed. the results show that there is positive correlation between australian high and the precipitation of middle and low reaches of yangtze rivers, and negative correlation between okhotsk and the precipitation of middle and low reaches of yangtze rivers

    由相關分析得出，春季鄂霍次克海區與澳大利亞高壓區和長江中下游地區夏季olr值分別表現出較好的正相關和負相關，表明這兩個地區位勢高度場的變化與夏季長江中下游地區降水多少有著密切的關系。
  5. Bias voltage, which are related to the superlattice structural paraments, the doped densities and the applied bias voltage. we have also investigated the characteristics of superlattice under hydrostatic pressure by simulations

    超晶格的負微分電導區還導致出現固定偏壓下隨時間變化的電流自維持振蕩，振蕩產生的條件依賴于其結構參數，摻雜濃度和外加偏壓的大小。
  6. The operation, codenamed steamroller, was mounted by officers of regional crime unit of kowloon west ( rcukw ) with an aim to combat handling stolen goods in the region

    該項名為壓路的行動由西九龍總區重案組負責，旨在打擊區內處理贓物罪行。
  7. 3 in the years of cold spring, the inner mongolia high and the aliushen low are strengthened with the low index of the east asia trough and the negative anomaly center of temperature over northeast china from surface to tropopause while the contrary conditions occur in the years of warm spring

    3 、東北地區出現春季低溫的主要環流特徵是：內蒙古高壓，阿留申低壓的強度加強；阿流申低壓指數以及東亞大槽強度指數減弱，東北地區從地面到對流層頂處在溫度負距平中心內，東北地區春季高溫時則出現與上面相反的變化形式。
  8. The circulation of positive pna index pattern is prominent in the case of persistent forcing of negative ssta in west wind drift region or positive ssta in tropical eastern pacific, which is the typical ssta pattern during el nino peak - mature phase

    西風漂流區持續負ssta時或者熱帶中東太平洋持續正ssta時，阿留申低壓均有所加強，正pna指數型的大氣環流特徵顯著。而當相反符號的ssta持續作用時，大氣中阿留申低壓減弱，對應pna指數為負。
  9. ( 4 ) the experiment of asymmetrical half bridge converter design and the result of it base of the above analysis, the dc / dc converter is designed, it is proved that asymmetrical half bridge can realize zero voltage switching when it satisfies the condition of load current and deadtime by the experiment

    （ 4 ）不對稱半橋的實驗電路設計及實驗結果基於前面的分析，設計了一個不對稱半橋dc dc變換器的實驗電路，進行了實驗研究，實驗結果證實了在滿足死區和負載電流兩個條件時，不對稱半橋可以實現零電壓開關。
  10. Furthermore, the dissertation researches the identifiability of the load by analyzing qualitatively the non - unique characteristic of the load parameter, and gives the numeric zone of the load parameters. the dissertation also investigates the view of the load model from different voltage levels

    論文進一步研究了負荷模型的可辨識性，對負荷模型參數不惟一做了定性分析，研究了實際負荷模型的模型參數取值區間，和不同電壓等級電網的負荷模型折算問題。
  11. Taking load uncertainties, infeasibility problem and multiple objection of the reactive power optimization in the radial distribution system into consideration, loads are modeled as fuzzy interval numbers. fuzzy power flow is proposed based on fuzzy interval load for the more practical membership function of line losses rate and maximal voltages offset. this thesis presents multiple objection model of the reactive power optimization considering uncertainties using the fuzzy set theory

    對配電網電壓無功優化問題中負荷的非概率性的不確定性問題、多目標問題、約束不可行性問題進行了研究，用模糊區間來描述實際的負荷情況，並用負荷的模糊區間值計算配電網的潮流，得到有功功率損耗和電壓的模糊區間值，使網損率和節點電壓最大偏移量的隸屬函數更接近實際情況；將改進遺傳演算法與模糊集理論相結合，通過求解多目標函數和約束條件的模糊集合的交集，得出網損率和節點電壓最大偏移量最小的最優運行狀態。
  12. Second, this paper analyzes the relation of reactive support service with voltage, power limit curve, transaction amounts. according to the power limit curve, this paper analyzes the source of the reactive cost to get an interzone cost function. using marginal cost theory, it concludes that the reactive spot price is the derivative of the cost function in generator buses

    另外，本文還從發電機角度上分析了無功服務與電壓、功率限制曲線、發電機向負荷傳輸電能大小的關系；根據功率限制曲線對發電機無功成本的來源進行詳盡剖析，從理論上確定一個分區間的成本函數；並依據短期邊際成本理論可推出，計算發電機節點的電價可採用無功成本函數的偏導數的方法。
  13. The construction methods and caving protection measures for punching high thick and loosen soft coal seam in luling coal mine no. 2 dark tilt well in huaibei coal mine area are introducded. they include small section enlarged after the heading caving, high negative pressure and multi - raw drilling holes and strenous drawing - off, concentrated cross drill holes, cutting while drawing - off and putting the metal frame away

    介紹了淮北礦區蘆嶺煤礦2主暗斜井採用小斷面導硐后刷大、高負壓多排鉆強抽，密集交叉鉆孔邊掘邊抽及設置金屬骨架施工方法和防突措施揭穿高突特厚松軟煤層。
  14. On base of results above, composite model of ssta in pacific and circulation anomaly are constructed for analysis their evolution. during mature phase of el nino usually in winter, positive ssta dominates in tropical eastern ocean and negative ssta dominates in west wind drift district in mid - latitude ocean, correspondingly the pna index of 500 hpa geopotential height is positive which means the aleutian low gets strong, and the situation is somewhat inversely during la nina phase of ssta

    合成位相反映了太平洋ssta演變特徵，以及相對應的大氣環流異常特徵：當西風漂流區處于暖態而熱帶中東太平洋海溫偏低時，合成大氣模型當中阿留申低壓減弱， 500hpapna指數為負異常；當西風漂流區處于冷態，熱帶中東太平洋處于暖態（ elnino峰值?成熟期ssta典型分佈） ，合成大氣模型中阿留申低壓加強， 500hpapna指數為正異常。
  15. Based on the results from both laboratory test and field application of vacuum preloading it can be concluded that soil is water - saturated in the processes of vacuum consolidation or vacuum preloading. thus, the consolidation properties in negative - pressure area cannot be calculated by using the theory based on non - saturation soil. negative pore - water pressure and suction were specified

    在室內試驗及現場試驗基礎上，證明真空預壓加固地基過程中，負壓區土體仍是飽和的，不能用非飽和土理論來計算負壓區的固結性狀，並辨析了負壓與吸力的概念。
  16. According to the comparison between simulation results and laboratory measurements, this paper reaches the conclusion that the negative pressure region in convex boundary ( including broken line gradient ) not only caused by boundary layer separation, but also especially caused by centrifugal force which is the result of convex boundary

    根據數值計算與模型試驗結果的比較，得出具有凸形曲面邊界（包括折面底坡）負壓區的存在不僅是邊界層分離所致，邊壁彎曲使過流產生的離心力也是產生負壓的重要原因的結論。
  17. However, when the applied bias voltage is located within negative slope regions of u - i curve, the superlattice will undergo a very fast dynamic process, changing from one stable state to another stable state. the superlattice exhibits temporal current oscillations in the negative differential conductivity region at fixed d. c

    當外加電壓使電流處于正微分電導區變動時，超晶格的高低電場疇之間的疇邊界不發生移動，只是相應的電場強度作些調整；當外加電壓使電流處于負阻區域時，超晶格將經歷一個穩態到另外一個穩態的動力學轉變。
  18. The air outside the engine tries real hard to move into the area of negative pressure in the cylinder

    通風在外邊發動機嘗試真正艱難進入負壓的地區在方面汽缸。
  19. The plants growing on the land surface can be affected by the occurrence and movement of water and salt in the aeration zone. in order to understand the characteristics of occurrence of water and salt in the aeration zone, we installed three tensionmeter systems. which includes 35 ceramic cups, in the soil of ejnqi oasis on the downstream of heihe river in inner mongolia province. the moisture potential distribution in aeration zone was observed, and the samples of water and soil were collected along the heihe river

    為了了解綠洲包氣帶水分、鹽份的分佈特徵，我們在黑河下游的內蒙古額濟納旗綠洲安裝了3組35支負壓計，觀測包氣帶中的水土勢，並沿黑河河谷從下游的額濟納旗到中游的張掖採集土樣和水樣，測試土壤的易溶鹽和潛水的化學成分，從包氣帶中水土勢和鹽份兩個方面來研究乾旱地區水分和鹽份在包氣帶中賦存和運移規律。
  20. The five reason of the formation and development of the plug is considered, and the rheology of soil body in the plastic deformation area is especially pointed out ; the statistic model is built in order to calculate the plug ' s length, and the practical significance of the model parameters is given out. it plays an important role on predicting the length of the plug in the process of penetration

    通過多種試驗對土塞形成的原因進行了分析，提出土塞產生的流變原因，該流變的一個顯著特點是作為塑性變形區整塊土體受負壓作用，而塑性變形區內部土體受向上的滲流作用，這兩種作用都是土塞形成和發展的積極因素。
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