阻水面積 的英文怎麼說
中文拼音 [zǔshuǐmiànjī]
阻水面積
英文
current-obstruction area-
Using the advanced technology by its head office ( newkey co., ltd. ), it produces various kinds of alumina black and white ceramic products. the component alumina ceramics, which are widely used in electron components, devices, electrical products, enjoy low loss of high frequency, high insulating strength, good specific volume resistance, small dielectric constant, high mechanical intensity and excellent airtightness and thermal and chemical stability
本公司根據目前市場需求,生產出各種型號的黑、白陶瓷產品,廣泛應用於電子、電工、化學工業、紡織工業、水暖、宇航、環保等諸多方面,系列產品有高頻損耗少,比體積電阻大,介電常數小,強度高,氣密性、熱穩定性、化學穩定性好等特點。The theoretic calculating method of the maximum and the minimum water level in the differential surge tank has been derived firstly. also the explicit method of calculating surges in the differential surge tank has been deduced firstly by use of thaler series expansion. the calculating method of section of the well and the effective impedance hole in the surge tank has been gived
根據差動式調壓室的基本微分方程,首次推導出了差動式調壓室涌浪幅值的理論計算公式;並同樣利用泰勒級數展開方法推導出了差動式調壓室水位波動的顯式計算式;導出了差動式調壓室大井面積和有效阻抗孔面積的計算方法。The calculated drafts covers the whole possible ship draft in the large amplitude motion ; secondly, the research creates and solves the ship large amplitude motion equations. on the one hand, the actual calculation takes into account the coupling between the different motion modes, on the other hand, in the process of calculation of the ship hydrodynamic coefficient, it considers the influence of the nonlinear factor. the hydrodynamic coefficient used in the calculation of froude - krylov force, diffraction force and radiation force changes instantaneously following the draft, and the hydrostatic buoyancy is computed very accurately for the instantaneous immerse hull
本文的研究分為二個部分:首先利用frank源匯法計算水動力系數,計算包括不同吃水時的附加質量和阻尼系數,吃水范圍涵蓋了船舶大幅度運動時所有可能的吃水;然後建立和求解船舶大幅度運動方程,在實際計算時一方面考慮了運動模態之間的耦合,另一方面在計算水動力時,考慮了非線性因素的影響。 froude - krylov力、輻射力、繞射力中的水動力系數隨吃水瞬時變化,靜浮力的計算精確到船體瞬時濕表面積,最後用四階龍格?庫塔方法在時域內求解船舶運動方程,並進行了載荷計算。According to the result of physical modeling, the regression equation about the decrement of tidal bore height, the percentage of water - resisting area and the distance away from the upstream bridge site is constructed in this paper, the regression equation can be applied in the impact which bridge has on the tidal bore height in qiangtang esturary
根據模型試驗結果,建立了涌潮高度的減小值與中潮位橋墩阻水面積百分比和上游離橋址距離的多元回歸方程,可供錢塘江河口建橋對涌潮高度的影響計算參考使用。It is local impact that bridge being built has on the shape of tidal bore, and this local impact can be recovered in the place which is 300 - 500 long upstream bridge. the impact that bridge being built has on the intensity of tidal bore depends on the water - resisting area of bridge. generally the more water - resisting area is and the nearer the place is away from the bridge site, the more impact is on the intensity of tidal bore
建橋對涌潮形態的影響是局部的,在橋上游300m 500m的范圍內基本可以得到恢復;建橋對涌潮強度的影響主要取決于橋墩阻水面積,一般來講,阻水面積越大,位置離橋址越近,對涌潮強度的影響亦越大。( 5 ) the spring greenland sea - ice extent is larger ( smaller ) : then during the following summer the high of the japanese sea is stronger ( weaker ), and the low of the asian land is stronger ( weaker ), which make the pattern of low west and high east easily ( uneasily ) form ; the ascending movement over north china is strengthened ( weakened ) ; the summer monsoon of east asia is stronger ( weaker ), then the southeastern, warm and damp airflow towards the north china is stronger ( weaker ), and the cold airflow of the high level over the north china is also stronger ( weaker ), which make the convergence of the cold and warm air over north china easily ( uneasily ) form ; the sst of the east pacific ocean is lower ( higher ), while the sst of west wind drift is higher ( lower )
( 5 )春季格陵蘭海冰面積偏大(小) :後期夏季日本海高壓偏強(弱) ,而大陸上低壓也偏強(弱) ,易(不易)形成西低東阻的形勢;華北地區的上升運動增強(減弱) ;東亞夏季風偏強(弱) ,向華北地區輸送的西南暖濕氣流偏強(弱) ,而對應高空華北地區上空冷空氣活動偏強(弱) ,利於(不利於)華北上空冷暖空氣的交匯;夏季赤道東太平洋海溫偏低(高) ,西風漂流區海溫偏高(低) 。在以上的環流背景下,華北夏季降水偏多(少) ,易澇(旱) 。On the other hand, the activity and function of p27 kip1 was affected by many physiological agents such as camp, il - 2, rampamycin. the expression of p27kip1 increased after - irradiationin in the fibroblastoma cells, leading to arrest in gl phase, but its expression markedly decreased after y - irradiation in the nbcc cells, and leaded to arrest in g2 / m phase. several studies have reported that p27 kip1 involved in a much wider range of cellar processes, such as differentiation, apoptosis and migration, the expression level of p27kip1 is key for its function in dna damage responses
另一方面, p27kip 』的活性水平及功能作用,因細胞類型不同而各異,又受多種因素的影響,如一些有絲分裂原camp 、雷帕黴素可以上調p27kip ,的表達,而il一2等則與p27ki 」 『的表達下降有關,受電離輻射( ir )照射的成纖維細胞瘤及用1 , 25一二經基d3處理的hela細胞系在gl期均有游離的p27腳『的積累,細胞周期阻滯在gl期;而在痣癌伽bccs )細胞中, y一射線能誘導p27吻『表達水平的顯著下調,細胞周期阻滯在g2艦期。The phase change of soil moisture and inflation of the frozen moisture c ause the reduction of hydraulic conductivity by reducing the area of flow section and the aperture of soil pore space, increasing the capillary resisting force to soil moisture, and decreasing the water potential gradient because of the increasing of movement distances of soil water
導水率減小是凍結土壤入滲能力減小的根本原因,而土壤中液態水的相變是導水率減小的根源所在。土壤水分的相變及其膨脹通過減小土壤水分過水斷面面積和孔隙孔徑,增大阻力和由於增長運動距離而減小水勢梯度使凍結土壤的導水率降低。Comparison of water level between measured and computation shows that the local head loss coefficient cannot give head loss by spur dike completely, and the effective area of passage is difficult to be ascertain. for this reason the two methods for water surface profile computation cannot predict the raise of water level upstream the spur dike accurately
計算結果表明,局部水頭損失系數並不能完全反映出由於丁壩阻擋所帶來的水頭損失,而丁壩附近的有效過水面積難以準確地確定,這些導致前兩種方法均不能很好地計算出丁壩上游水位的壅高值。As compared with the conventional straight well, the horizontal well can greatly increase the contact area between well and reservoir, change the filtrational mode in the vicinity of wellbore in the reservoir and reduce filtrational resistance, thus obtaining higher oil and gas production by a relatively low producing pressure difference
摘要同常規的垂直井相對比,採用水平井開采能夠大幅度增加油氣井與油氣藏的接觸面積,改變油氣藏中井筒附近區域的滲流方式,降低滲流阻力,進而可以利用較低的生產壓差來實現更高的油氣產量。The results showed that soil surface resistance often increased with evaporation time and cumulative evaporation, but the relation might be changed by variation of difference of vapour pressure between evaporating plane and atmosphere ; difference of vapour pressure between evaporating plane and atmosphere was one of the major factors for determining the soil surface resistance
結果表明,土壤表面阻力總趨勢是隨蒸發時間的延長和累積蒸發量的增加而增大,但這種關系有可能被土壤蒸發面和大氣間水汽壓差的改變所打破,土壤蒸發面和大氣間水汽壓差是決定土壤表面阻力的主要因素之一。The comprehensive geological characteristic has been fully studied in this paper. on the basis of this, closely combining production practice, the favorable gas developing regions have been determined with the methods of sedimentary facies and combination of generation, reservoir and caprock, and logging parameters interpretation maps and regression formulas have been established with logging data, as well as reprocessing, interpretation and identification of gas reservoir have been done with computer. integrating the information and results of geology, logging, testing and geophysics, the gas reservoir distribution regularity of structure of no. 1 sebei has been described and reserves in place of no. 1 ' sebei gas field have been recalculated, which have provided a basis for next step of development in research area
在近十多年,通過提高地震資料處理精度、淡水聚合物泥漿的應用、數字測井技術的運用、並加強了低電阻層和差物性層的試氣及氣田擴邊鉆探,大大提高了對氣層的識別,大量增加了氣層的層數和厚度,擴大了氣田的含氣面積,使氣田儲量通過多次復查核算仍在不斷增加本論文充分研究了青海澀北一號氣田天然氣地質綜合特徵,並以此為基礎緊密結合生產實踐,應用沉積相與生儲蓋組合等方法確定氣藏有利發育區帶,應用測井資料建立測井參數解釋圖版並回歸公式,應用計算機重新處理、解釋和識別氣層,綜合地質、測井、試井、物探等多方面信息與成果,描述了澀北一號構造的氣層分佈規律,重新計算了澀北一號氣田的地質儲量,為研究區下一步開發提供了依據。Productive durability test and oxygen transfer performance test in clean water per diffuser for seven kinds of diffusers were studied respectively in this paper, and serving diffusive area, air flow, varied resistance, varied resistance after stopping air flow, diffusive strength were also investigated in the productive testing period
摘要對7種曝氣器產品分別進行了單盤耐用性生產試驗、單盤清水充氧性能試驗以及對在大生產試驗期間的服務面積、供氣量、阻力變化、停氣后阻力變化、曝氣強度等方面進行了測試對比工作。Based on optimal hydrothermal modification conditions, the regular hexagonal plates of mg ( oh ) 2 with uniform size and smaller bet surface area were formed after the hydrothermal treatment
在合理的水熱改性條件下,能夠制備出大晶型、低比表面積、高分散的規則六方片狀氫氧化鎂阻燃劑。Those forces cause the objects to rise and thus diminish both surface and frontal resistance
這些力使物體產生浮力並使觸水表面積和前沿阻力減小。分享友人