水頭差 的英文怎麼說
中文拼音 [shuǐtóuchā]
水頭差
英文
head difference-
So near were we, indeed, that my head came against the coxswain s foot with a crack that made my teeth rattle
我和副水手長挨得那麼近，以至於我的頭咚地一聲撞在了他的腳上，差點把我的牙撞掉。The results of 2 - d resistivity inversion of the yishui - tangtou and the liujazhuang faults indicate that electrical structures on both sides of the fault zone present obvious difference, the resistivity of the hanging wall is low and partially high, while that of the foot wall is high, and the faults are high - obliquity faults
沂水湯頭斷裂、劉家莊斷裂的二維電阻率反演結果表明，斷裂帶兩側的電性結構呈現出整體性的差異，正斷層的上盤為低阻區和局部高、低阻擾動區；而斷層下盤多為均勻的高阻區；斷層為高角度斷層。The gabled brick, tile, and freestone houses had almost dried off for the season their integument of lichen, the streams in the meadows were low, and in the sloping high street, from the west gateway to the medieval cross, and from the medieval cross to the bridge, that leisurely dusting and sweeping was in progress which usually ushers in an old - fashioned market - day
那些帶有用磚砌的山墻和蓋有屋瓦的石頭房子，外面的一層苔蘚已經因為乾燥的季節差不多曬干脫落了草場上溝渠里的水變淺了，在那條斜坡大街上，從西大門到中古十字路，從中古十字路到大橋，有人正在不慌不忙地清掃大街，通常這都是為了迎接舊式的集市日子。By investigating and analyzing the 2004 - set standard reaching gymkhana of talented athletes in xuzhou city, the purpose of this paper is to find out the main factors that cause talented athletes to do poorly at the " headstream " of entrance examination, take corresponding countermeasures against such phenomenon and put forward reasonable suggestions so that more selected athletes at the basic level can reach the set standard games
摘要通過對徐州市2004年男子優秀三級跳遠運動員達級賽的調查研究與分析，找出高水平運動員招生「源頭」成績差的主要原因，提出相應對策，為基層有更多的選手通過達級賽提出合理化建議。This paper analysed working principles and controling features of water lifts about the head pressure transition. plc was used to operate controling system so as to work the system well
摘要對水頭差壓力轉換提水裝置的工作原理及控制特點進行了分析，使用可編程式控制制器（ plc ）控制系統運行，使系統很好的工作。The restriction factors are lack of government and policy support, the small production scale, the low degree of farmer ' s organization, the construction of industrialization management scheme was weak, internal mechanism was needed to be improved, the proportion of breed was inconsequence, low utilization ratio of resource, low research level, behindhand production technique, low science and technology content of produce, trade was lack of self - discipline, competition without orders, low level of marketing and currency, the market system was not healthiness, the scales of leading enterprises were small, so they were short of ability of bringing along others
當前制約菏澤市牡丹產業發展的主要因素是政府行為不規范、支持力度不夠;生產規模普遍較小，農民組織化程度低，產業化經營組織建設還很薄弱，內部機制有待完善;牡丹品種結構不合理，資源利用率低;科研水平低，生產技術落後，產品科技含量低;行業自律性差，無序競爭嚴重;產品營銷、流通水平低，市場體系不健全;龍頭企業弱小，帶動能力不強。( 5 ) it was more precise for using darcy - weisbach formula to calculate the hydraulic pressure slope curve in the lateral line, but too complexity. although i - pm wu formula is simple, the estimated results were not agreement with the measured data. a coefficient including irrigation uniformity was presented to modify i - pal wu formula, and the results were agreement after using the coefficient
（ 4 ）利用達西?韋斯巴赫公式計算微孔毛管的沿程水頭損失具有較高的精度，但計算復雜，吳義伯公式計算雖較簡單，但在灌水均勻度較差時誤差較大，為此對吳義伯公式進行了修正，提出了修正系數的計算經驗公式，取得了良好的結果，為簡易地下滴灌工程設計中水力計算建立了簡化公式。The control system of mould level is crucial to improve the slab quality in the continuous casting process, pid controller is used in the traditional mould level control, and it has some defaults, such as : at the start - up or finishing period of casting or during the changeover of tundish, pid control has a bad effect, its overshoot is large and its transient time is long ; the erosion of the tundish stopper and the submersed nozzles lead to the accuracy of control become bad ; the abrupt falloff of block in the submersed nozzles makes the level acutely fluctuate, and pid control can not overcome the disturbances resulted from the change of casting speed
結晶器液位控制系統是提高連鑄產品質量的關鍵環節，傳統的連鑄機液位控制方法採用常規的pid控制，存在如下不足：開始、結束澆注和換中間罐澆注時，控制效果差，超調量大，過渡時間長；塞棒頭和浸入式水口被腐蝕后引起控制精度差；浸入式水口堵塞物的突然脫落所引起的液位劇烈波動；無法克服拉速波動引起的擾動。Large scale salt - water intrusion has been occurred since late 1970 ' s due to freshwater exploitation by human activity
20世紀70年代末期以來，隨著對地下淡水的過度開采，淡鹹水水頭壓力差減小，鹵水通過古河道砂層快速南侵。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It is more accurate than traditional method at the aspect of calculating head loss, pipe flow and node pressure of hydrant. this mathematic model can also be used in the inside and outside of water supply piping calculation and it is excel hardy cross - piping calculation
該方法在計算水頭損失、管段流量、消火栓節點壓力等方面比傳統方法要更加準確，也可被借鑒到室內或室外的給水管網計算，並優于常見的哈代-克羅斯管網平差方法。There are several important issues to that attention should be paid in the design of test bed, such as the measurement of the temperature difference between the inlet and outlet of test section and the temperature of cooling water in the inlet and outlet of condensing tubes, filled volume of the steam boiler and its level control, the determination of the natural acting head of high temperature tank and design of the cooling water flow of measuring tank
試驗臺由高溫工質自然循環子系統、冷卻水機械循環子系統和計算機監測控制子系統構成，試驗段進出口溫差及冷凝管進出口溫度的測試、蒸汽鍋爐充注量及液位控制、高溫水箱自然作用水頭的設計、冷卻水流量計量水箱的設計等是試驗臺設計中值得重視的問題。The settlement depends on not only the depth of dewatering but also the permeability of soil
地表沉降不僅取決于坑外降水深度和坑內外水頭差，還與土層的滲透性有關。Corresponding to the correct water hammer mathematic model ( 3 ), the character difference equation is by comparing the new mathematic model with the old mathematic model, the last calculative part of paper argues the falseness of the current water hammer mathematic model, makes use of the improved character line method to analyze the correct mathematic model ( 3 ), studies all kinds of facts " impact on water hammer pressure value and water hammer phenomenon attenuation, points out that, in the long pipeline system, the subarea calculation of head loss along with flow rather influences the calculative results of water hammer pressure, advices to take the subarea calculation of head loss along with flow into account in the water hammer calculation of the long pipeline system
對應于正確的水擊數學模型（ 3 ）的特徵差分方程形式如下c ，弓+吼川一c ，唱一幾弓扮幾rv另卜川= o幾代+吼川一幾唱一吼嶸{一c :腳丸}唱} ? 「本論文在最後的計算部分，通過對新老數學模型的數值計算比較，進一步論證了當前水擊數學模型的不正確性。並且應用改善了的特徵線法對正確的數學模型（ 3 ）進行了計算分析，研究了各種因素對水擊壓強值和水擊現象衰減的影響，指出在長管道系統中，沿程水頭損失的分區計算對水擊壓強的計算結果影響較大，建議在長管道系統的水擊計算中應按分區進行沿程水頭損失的計算。During the excavation of foundation pit, due to the wide variation in water lever, the huge head fall should result in drastic flow of the ground water, which will bring about a full influence on the deformation of the retaining wall and on the surrounding structures in a large - scale range
在深基坑開挖過程中，需大幅度降低基坑水位，巨大的水頭差將使得土體孔隙中的水運動趨向激烈，從而影響到基坑支護結構的變形，並由此對較大范圍內的鄰近地段的安全產生影響。Loss of head is minimized by the balanced disc and its " aerofoil " design. streamlined body without pockets contributes to straight - through flow
通過平衡閥瓣及其「翼型」結構，將水頭損失（或位差損失）降到最小程度。流線型閥體，不再需要凹穴來幫助流體直線流通。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( 3 ) the water head loss of the standard deep bed and that of the designed deep bed have less difference if the later is built according to the relationship of l / d2, but they have larger difference when it is constructed according to the relationship of l / d
按照l d ~ 2的關系設計新濾池時，標準濾池的水頭損失與新濾池的水頭損失之間的差別較小，而按照l d的關系設計新濾池時，標準濾池的水頭損失與新濾池的水頭損失之間的差別較大。Experiments about the influence of aeration on the velocity of the submerged jet was made. it has been proved that the main reason of the influence of aeration on scour is the more rapid decrease of the velocity of the submerged velocity. 6
對基巖的沖刷進行了數值模擬，選取臨近底部的結點處的壓強（壓力水頭值）與結點處水深的差值，再與結點處垂直於底面方向的速度分量的0Cable car for passenger transportation is now beening widely used in the incline ports with big water level gap, so it is desirable to systemize the research of cable car
客運纜車正逐步地被山區大水位差斜坡道式客運碼頭所廣泛採用，有必要對客運纜車進行系統化研究。分享友人