氣壓梯度 的英文怎麼說
中文拼音 [qìyātīdù]
氣壓梯度
英文
baric gradient-
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The quaternary system is characterized by high geothermal gradient, with low scope of overpressure in its deep and shale caprock saturated with formation water of high salinity
第四系具有較高的地溫梯度,深部發育了低幅超壓;甘森泉小柴旦基底斷裂影響氣藏構造的完整性;第四系飽含高礦化度地層水泥巖構成的蓋層可以起到一定的封蓋作用。Through studying it is shown that in chagan sag, the geothermal gradients in the center are higher than those around the sag margin and major factors influencing the characteristics of temperature field distribution are the property of geotectogenesis and the differences in tectonic portion, lithology and underground water behaviour ; there are three types of mudstone compaction, i. e. normal compaction, undercompacition and overcomepaction ; there are two pressure systems in sandstone reservoirs, i. e. normal pressure and negative pressure systems and the strata ' s being uplifted and denuded is the key factor leading to the formation of the negative pressure system in reservoir ; and the distinctive temperature - pressure field characteristics in the sag are possessed of important petroleum geological significance in hydrocarbon source maturity, hydrocarbon generation, widening on oil and gas exploration domain and selecting exploration targets, etc
研究表明,查干凹陷中心的地溫梯度高於凹陷邊緣,大地構造性質及所處構造部位、巖性與地下水活動的差異是影響凹陷地溫場分佈特徵的主要因素;泥巖壓實存在正常壓實、欠壓實和過壓實三種類型,砂巖儲層段壓力類型可分為正常和負壓兩個系統,地層抬升剝蝕是導致儲層負壓系統形成的主導因素;凹陷獨特的溫壓場特徵對烴源巖成熟、油氣生成、油氣勘探領域的擴大及勘探方向的選擇等具有重要的油氣地質意義。If the system is at constant pressure then there must exist a counter gradient of air molecules.
如果系統處于常壓下,那麼必定存在空氣分子的反方向梯度。The atmosphere pressure gradient is an inverse measure of the spacing of the isobars on a weather map
氣壓梯度與天氣圖上等壓線的間隔大小成反比。The diagnostic analysis for the sandstorm process on the base of height, temperature, pressure and wind etc output from the model shows that the upper cold trough, low - level wind shear, surface cold anticyclonic ridge, mesoscale cyclone and cold front are the main synoptic systems, surface cold anticyclonic ridge and cold front provide condition of wind force to occurrence of the sandstorm weather, the strong mesoscale cyclone before front makes pressure gradient before and after cold front obviously strengthen, moreover, and it increases obviously the temperature of the controlled area, as a result, the updraft movement caused by convergence before front strengthens
500hpa強鋒區、 700hpa切變和鋒前中尺度系統的強弱及位置變化是沙塵暴天氣發生發展到減弱的直接原因。地面冷高壓、地面氣旋及冷鋒是造成本次沙塵暴天氣的主要地面天氣系統。地面冷高壓及冷鋒為沙塵暴天氣的發生提供了風力條件,而中尺度氣旋使冷鋒前後氣壓梯度明顯增強外,又使所控制的區域增溫明顯,使鋒前輻合上升運動加強,為沙塵暴天氣的發生提供了熱、動力條件。Compress disk is the very important rotational component in the areoengine. when the compress disk is working, the grads of temperature and stress between the rim and the center of the disk are great. in order to raise the thrust - weight ratio of the disk and reduce oil consumption. the best prospective way is the dual alloys disk used
壓氣機盤是航空發動機上一個很重要的轉動部件,壓氣機盤工作時,輪緣和輪轂溫度梯度和應力梯度較大,為了提高飛機發動機推重比、減低耗油量,要求壓氣機盤的工作溫度、使用性能更高,雙合金盤製造是最有發展前景的技術。And the relationship between the size of a cavity and the velocity of cross - flow gas was investigated
當錯流氣速或壓力梯度足夠大時移動床內將發生空腔,空腔大小隨錯流氣速的增大而增大。Through the thermodynamic analysis for the sandstorm weather according to the simulated potential temperature, potential vorticity field, it is found that this sandstorm weather occurred in the condition of the atmospheric stratification stability, the area of the high potential temperature value and the potential temperature gradient have a good corresponding relationship with the surface cold air and cold front, so are the strength of potential vorticity and the different developing stage of sandstorm
利用輸出的位溫、位勢渦度場,對沙塵暴天氣進行熱動力條件分析,發現本次沙塵暴天氣發生在大氣層結穩定狀態下,位溫大值區及位溫梯度與地面暖低壓的強弱和移動有著很好的對應關系,位渦的水平分佈特徵和強弱變化對沙塵暴的出現時間和落區有一定的指示意義。The main factors affecting percolation in low permeability reservoirs include stress, threshold pressure gradient, slippage effect and water - blocking effect, which play various roles on percolation, but all will result in non - linear percolation in the end
影響低滲氣藏滲流特徵的主要因素有應力作用、啟動壓力梯度、滑脫效應和水鎖效應等因素,並且這些因素對滲流影響各有不同,但最終均引起低滲氣藏滲流的非線性化。It is found that the mesoscale mountain has significant influence on the location and intensity of the heavy rain area, and the bell - mouthed area and the riverway area of xichang are favorable to the occurrence and development of mesoscale disturbance and heavy rain
地形梯度分析表明,西昌地區所處的河谷地形和場區所處喇叭口小地形,有利於中小尺度氣壓擾動的發生、發展和暴雨的產生,當地形梯度減弱時,降水量相應減弱。Release of the heat of fusion is believed to alter the pressure gradient in such a way as to diminish the destructive winds near the storm center
人們認為融解熱的釋放可以改變氣壓梯度,結果減小風暴中心附近的破壞性風力。And the thickness of target should also be well designed as for creating a better quasi - isentropic compressive wave profile. finally, experiments of quasi - isentropic loading to 93w alloys via w - mo - ti flier - plates were performed on a two - stage light gas gun
在二級輕氣炮上進行了w - mo - ti體系梯度飛片材料準等熵壓縮特性的實驗研究,利用梯度飛片成功實現了對93w合金的準等熵壓縮。At the same time, the thickness of target should also be in accord with the impact velocity. experiments of quasi - isentropic loading to 93 w alloys by 93w - ofc - tc4 - a1 - mbz system flier - plate with graded wave impedance were performed on light gas guns. the corrected visar - measured wave profiles were profiles with an initial velocity jump followed by a stepwise - rising front to the peak velocity amplitude, indicating that quasi - isentropic compression energy waves had been successfully generated
在輕氣炮上利用研製的93w - ofc一tc4 . ai一mbz系波阻抗梯度飛片實現了對93w合金(靶材料)的準等嫡壓縮,經修正後的測試波形都是由一個較弱的初始速度跳躍和一段呈階梯狀緩慢上升的波陣面前沿所組成的準等嫡壓縮波。Furthermore, the higher the impact velocity, the smaller the extended wave ' s front while the higher the peak velocity. at the same time, the thickness off target should also be in accord with the impact velocity. finally, experiments of quasi - isentropic loading to aluminum targets with lithium fluoride windows via w - mo - ti - mg system flier - plate with graded wave impedance, having been fabricated by sps, were performed on a two - stage light gas gun
使用sps制備出平行度好、整體緻密的、 w - mo - ti - mg系準連續波阻抗梯度飛片材料,利用二級輕氣炮進行了w - mo - ti - mg系波阻抗梯度飛片材料的準等熵特性的實驗研究,成功實現了對帶窗口材料的al靶板的準等熵壓縮。Results of experiment b demonstrate that a convergence zone of wind vector and water vapour with dense pressure gradient is formed alone the coast after tc ' s outer circulation encountering land, which results in more precipitation
試驗b的結果顯示,熱帶氣旋外圈環流與陸地接觸後到中心登陸前後,沿海岸線一直存在一條氣壓梯度相對密集的風矢量、水汽輻合帶,引起該處降水增多。The results of numerical experiments, using the four - dimensional variational data assimilation system of the nonhydrostatic mesoscale model mm5, show that : the tangent linear model and adjoint model conducted by keeping the " on - off " switches the same as the basic state, can provide a good approximation of the first - order information to the nlm perturbation and a good descent direction for the minimization procedure ; switching on and off at every other time step in the kuo cumulus parameterization scheme do n ' t impact the convergence rate of cost function ; the existence of the switches do n ' t impact improvement to the mm5 model rainfall prediction because that not only specific humidity, but also wind, temperature and pressure are assimilated into the model
非靜力中尺度數值模式mm5的四維變分資料同化系統進行的數值試驗結果表明: 「開關」變量保持與基態一致,所構造的切向線性模式能夠提供關于非線性模式擾動的一階近似,伴隨模式所計算的梯度值能夠為最小化過程提供較好的下降方向;郭氏降水參數化方案中對流每隔一個積分步的交替發生並不影響目標函數最小化的收斂速度; 「開關」變量的存在也不影響將風、溫度、氣壓和比濕結合起來同化對mm5降水預報準確性的提高。When tc approaches to coast, under the squeezing effect between tc and land, convergences of wind vector and pressure gradient are intensified between tc " s center and coast, and, a new high wind domain forms
隨著熱帶氣旋不斷接近陸地,由於擠壓作用,二者之間區域的風矢量輻合和氣壓梯度不斷增強,形成新的大風區,造成水平結構的變化。Regional difference in lower - level temperature dv and pressure dv are greatly weakened and dv of llj is distinctly faint without the nanling ridge. this result show that nanling ridge acts as a critical role in the establishment of dv of the lower - level temperature and pressure, which give rise to the dv of llj in south china
而當模式中僅僅去掉南嶺和武夷山山脈地形后,低層大氣溫度場日變化的區域性差異明顯變弱,梅雨低壓帶南側原南嶺山脈所在地的溫度日較差明顯減小,使得梅雨低壓槽與華南地區之間的南北向水平溫度梯度和水平氣壓梯度的日較差顯著變小,導致華南低空急流日變化的顯著減弱。Triggering creates a voltage gradient in the gas of sufficient magnitude to cause ionization of the lamp
觸發能在氣體中產生足夠大的電壓梯度,進而使閃光燈發生電離分享友人