氣壓形勢 的英文怎麼說
中文拼音 [qìyāxíngshì]
氣壓形勢
英文
baric topography-
We can use the mm5 model in definite time, definite area weather forecasting. we conclude that : : the moving route of this necw in its developing progress was direct - south along latitude, the cold air is rough, and just this made the rough vertical velocity ; the necw southern moving and conflicting with the west pacification sub - tropical high makes rough jet steam. the plenty south - west warm and wet air made by the jet stream gave the rainstorm demanded vapor ;. the rough vertical velocity by jet stream is a main reason in this rainstorm ; the mm5 model uses four - direction analysis data as its input, this avoids some errors occurred in observe and transfer, thus made the result more useful
綜合分析認為： （ 1 ） 、這次冷渦在其發生發展過程中，其移動路徑是沿經圈直線南壓，攜帶的冷空氣勢力較強，形成槽后較強的垂直運動； （ 2 ） 、西太平洋副熱帶高壓偏北位置與東北冷渦南壓形成的急流軸，把源源不斷的西南暖濕氣流輸送到遼西地區，也就是急流軸的左前方位置，為這次暴雨的產生提供了充足的水汽來源； （ 3 ） 、低空急流不但為暴雨輸送水汽，其造成的較強的垂直環流也是產生強降水的一個主要原因； （ 4 ） 、 mm5模式以四維同化資料作為初始場，最大限度地避免了觀測誤差可能造成的積分不穩定，提高了模擬結果的參考價值。According to those analysis and the background of geological evolution of basin, the kind of hydrodynamics was regarded as compaction before y3 and then as compaction - osmosis after y3. futhermore, the key time of oil and gas reservoir formation was summarized, it is furthermore, the main cause of high pressure formation was believed that the compaction was not enough in paleogeothermal gradient, meanwhile, analyzing the cause of the low pressure nowadays, it was the uplift and erosion of stratum or pressure divulgence because of seal and so on
另外，還確定油氣成藏的關鍵時期為伊敏組沉積末。再者，認為欠壓實是最大埋深狀態下，超壓形成的主要原因，同時分析了形成現今負（低）壓的原因，其原因為地層抬升剝蝕、壓力因封閉層的泄漏等。最後，恢復出各主要目的層的古流體勢的演化歷史，從伊敏組末至現今，油勢分佈特徵具有較好的繼承性。The blade inner channel cooling is a complex convection - conduction coupling problem. this thesis build a three - dimension. compressible turbulence model, and give a general solve method. with the geometrical model of the glossily rectangle straight channel, the rectangle straight channel with in - line arrays disturb plates, the rectangle straight channel with staggered arrays disturb plates, the rectangle straight channel with slant disturb plates, this thesis compute the flow and heat transfer condition when the cold air path though these channels, and gain the temperature field, pressure field, velocity filed, in addition. this thesis also analyze the influence of the different channel height, the different channel materials, the different channels, and gain the function relation between he nusselt number, friction factor and reynolds number. this thesis is emphasis on the new heat transfer enhancement structure, that is, disturb plates, with the comparison with the glossily channel and channel with pin fins, the heat transfer enhancement effect of the former is better, and the conclusion can be used in the design of aircraft blade
葉片內部通道冷卻是一個復雜的對流?導熱耦合傳熱問題，本文在分析葉片內部通道冷卻的流動與傳熱情況的基礎上，建立了三維、可壓縮紊流的物理模型，得到了通用的求解辦法；利用不帶擾流片的矩形直通道、帶順排擾流片矩形直通道、帶叉排擾流片、帶傾斜擾流片的矩形直通道的幾何模型，計算了冷卻空氣通過這幾種通道時的流動與換熱情況，得到了各種不同情況下計算區域的溫度場、壓力場、速度場；在此基礎上分析了不同的通道高度、不同的葉片通道材質對葉片內部通道冷卻的影響，並整理得到了各種通道形式下，努謝爾數和阻力因子與雷諾數的函數關系；本文重點研究了新型的葉片內部通道冷卻強化傳熱措施?帶擾流片的內部冷卻通道的強化傳熱效果，通過與光滑矩形直通道、帶針肋通道的冷卻效果的比較，表明了這種新型鮚構的優勢，對于葉片內部通道冷卻結構的設計可以起到指導的作用。The quasi - geostrophic process was diagnosed for a case of severe cold air breakout under the blocking situation during 16 - 18 march of 1998. the attention was focused on the relationship between the surface anticyclone and 500hpa blocking high. the results indicate that the cold outbreak is associated with the adjustment of blocking situation in the ural area, i. e. the collapsing and rebuilding of the ural mountain blocking high. the temperature advections in the lower troposphere shown that the polar cold air invading from the northwest caused the ural blocking high collapsed, and a new ridge developed rapidly was due to the warm advection on the southwestern side which led to the ural blocking high rebuilt. in addition, the distribution of the vertical motion on 700hpa shown that the surface high splitting was related to the considerable upward motion located on the southeastern part of surface high
對1998年3月中旬一次高空阻塞形勢下強冷空氣過程進行了診斷分析，著重討論強冷空氣爆發前後地面反氣旋活動與高空阻塞形勢調整的關系。研究結果表明，強冷空氣的爆發與烏拉爾地區阻塞形勢的調整阻塞高壓的崩潰和重建緊密相關。對流層下部的溫度平流分析表明，阻塞形勢的調整是由於阻塞高壓上游西北方有冷空氣侵入導致了阻塞高壓的崩潰，而上游來自西南方向的強暖流則導致高壓脊迅速發展，使阻塞高壓重新建立。( 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） 。The thesis was written under the direction of dynamic theory of forming reservoir, follows the rules of comprehensive information, judgment, interpretation and assessment and even makes full use of outcrop geology, data from drilling and logging, data from laboratory analysis and achievements in geophysical exploration. considering the basic factors of forming reservoir in the south of ordos basin as the starting point, the thesis defines that yanchang group of triassic goes into the start of generating oil in the late period of mid - jurassic and that the largest oil generation peaks in the middle period of early cretaceous, after the analogue - history of hydrocarbon generation. meanwhile it also establishes the relationship between the evolution of oil and gas and the formation of traps, the time of oil exploration
本文以成藏動力學理論為指導，本著綜合信息、綜合判斷、綜合解釋、綜合評價的原則，充分利用露頭地質，鉆測井資料，實驗分析資料及物化探成果，以鄂爾多斯盆地南部的基本成藏要素為出發點，通過生烴史模擬，確定了三疊系延長組在中侏羅晚期（ 150ma ）進入生油門限，于早白堊世中期達到最大生油高峰期；同時並確立了油氣演化與圈閉形成、捕油時間的關系；通過流體勢的全區計算，提出了該區油勢具有明顯的「雙層」結構特徵，並建立了以靜水壓力為主的重力流系統和以差異壓實作用為主的壓實流系統的流體動力分佈模型；通過成藏動力學系統的劃分及事件分析，探討了該地區油氣聚集規律，最終指出了有利的含油氣遠景區。Abstract : a new process of drop - feed gas carburizing with enhanced pressure and mass flow has been described
文摘:用高爐壓、大劑量煤油滴注進行氣體滲碳，所形成的滲碳氣氛碳勢可達2 . 0 % 2 . 6 % ，工件表面無碳黑沉積。The analysis of dry pv shows that the high pv dominate the area of typhoon, the higher is the center value of pv, the stronger is the typhoon. lt is also shown that the most important reason resulting in rainstorm is the cold air ( high pv ) which spreads to south from the upper troposphere or lower stratosphere and transports into the warm air. the joining situation of upper and lower pv area make vortex develop. pv transpotation reduces static stability, which increases the releasing of instability energy and makes rainstorm amplify
對干位渦的分析表明：臺風或臺風環流區為高值位渦區，臺風越強，位渦中心值越大；對流層上部或平流層下部冷空氣（高位渦）的擴散南下與暖濕氣流的交匯是造成特大暴雨的重要原因，因為上游斜壓性的發展使對流層頂發生折疊，平流層與對流層相互作用增強，上下位渦區相接的形勢使低層渦旋發展，上升運動加強，位渦的下傳有效地降低了靜力穩定度，有利於位勢不穩定能量的釋放，使得暴雨增幅。Firstly, subtropical high center lay to the north than usual, and forms a blocking high in combination with land high in eastern asia. secondly, on account of the strong southwest current which occurred at the west side of the subtropical high and dynamic effect of the typhoon itself, the landing northward tropical cyclone ( 9711 ) landed in liaoning again. thirdly, a trough with some weak air from ural mountain and the northeast cold air entering into the tropical cyclone showed that the systems in different latitudes had some effects each other
模擬結果表明：此次熱帶風暴造成遼寧全省大暴雨的天氣背景是：副熱帶高壓偏北並與大陸高壓疊加，構成了穩定的東亞阻塞形勢； 9711臺風減弱的熱帶風暴，在其自身內力和副高西側的強盛偏南氣流引導下，持續北上並在遼寧營口至盤錦之間登陸；從烏拉爾山冷堆分裂南下出的弱冷空氣不斷南下，與熱帶風暴在遼寧產生了相互作用，增強了上升運動，致使大暴雨出現。The sense of this work is to gain a further understanding of helium in the two metals. on the diffusion of helium - 3 in two spherical shell samples made of 21 - 6 - 9 type of stainless steel, during the storage of tritium at the pressure of 6. 13mpa for about 4 and 6 years at room temperature and later exposed to air for another 3 and 1 year. first, a calculation based on the analytical and numerical method to the diffusion and decay theories was developed to evaluate the concentration distribution of helium - 3 by tritium diffusion and decay in the samples
在不銹鋼氚衰變~ 3he的擴散行為研究中，建立了氚和~ 3he濃度分佈的解析解和數值計算方法，以評估充氚不銹鋼球形容器壁中氚衰變~ 3he的宏觀濃度分佈，同時還用數值計算方法以求解氚和~ 3he的多步擴散行為；對樣品表面逐層蝕刻、同時收集釋放的~ 3he進行分析，分別實測了經室溫條件下在6 . 13mpa高壓氚中貯存4年和6年、空氣中存放3年和1年的兩種21 - 6 - 9不銹鋼球殼樣品內壁中~ 3he濃度分佈；結果表明：由於he在金屬中的不可容性， he原子偏聚于不銹鋼表面以及內部的局部區域，在整體趨勢上， ~ 3he分佈與計算結果相一致，根據理論計算，兩種21 - 6 - 9不銹鋼球殼樣品內壁中~ 3he到達的深度分別為350 m及500 m 。And the dv of lower - level systems, e. g., jet stream, is among the intermediate changes happening after the dv is displayed in the meiyu pressure field
低空急流等系統的日變化是梅雨天氣系統內，低層氣壓場形勢出現日變化后發生的眾多中間變化過程之一。By using the data from 9210 broadcast system and t213 numeric forecast re - analysis data, we studied the starting and developing of one necw, and discussed the mechanism of west - liaoning rainstorm at a definite necw circumstance. we can see, although the necw is weather scale system, the distribution at difference level contacts very important information
從分析中可以看出，雖然東北冷渦是天氣尺度系統，但是由於氣壓場形勢的配置不同、冷渦中心的位置和冷空氣的移動方向不同、高低空氣壓場形勢演變等原因，造成的局地天氣差別是很顯著的。分享友人