field height 中文意思是什麼

field height 解釋
場幅度
  • field : n 菲爾德〈姓氏〉。n 1 原野,曠野;(海、空、冰雪等的)茫茫一片。2 田地,牧場;割草場;〈pl 〉〈集...
  • height : n 1 高,高度;身高;海拔。2 〈常 pl 〉高地,山丘。3 高貴,卓越。4 絕頂,頂點;【聖經】天。5 〈罕...
  1. The satellite altimetry has developed as a kind of important space geodetic technique since 1970s. the return signals from ocean regions can provide all - weather height information above the sea level repeatedly and accurately. the satellite altimetry has now not only impacted strongly on the field of oceanography and geophysics, but also changed greatly the fact of geodesy

    衛星測高作為二十世紀七十年代發展起來的一項空間測量技術,能在全球范圍內全天候、多次重復、準確地提供海洋表面到衛星距離的觀測值,在地球物理學領域和大地測量領域有廣泛的應用。
  2. Based on the field investigations and laboratory examinations, a study of the population of the epiphytic dolichomitriopsis diversformis ( mitt. ) nog. in fanjing mountain reveals that its habitats are different among different host trees, but that there lies the common habitat characteristics of not more than 2m height from the bottoms of host trees trunks, less light, high relative humidity, slow wind speed, slow evaporation speed and long time of remaining humid in middle - lower tree bark ; that it is one dioecious moss species, the morphology is remarkably different between its perichaetium and perigonium, the number of its perichaetia is much more than that of its perigonia, its perigonium is difficult to find out, its sporophyte is upright, its seta is long and thin, its capsule is regular long oval and its calyptra is cucullate

    摘要通過野外調查和室內觀測對貴州省梵凈山樹附生尖葉擬船葉蘚種群的研究表明,其生境因其所附生的樹種不同而有所不同,但具有共同特點:附生在樹干下部距地面2m高的范圍之內,光照弱、濕度大、風速小、蒸發量小、中下部樹皮保持濕潤的持續時間長;其為雌雄異株蘚種,雌、雄器苞形態差異明顯,雌器苞數量多,雄器苞數量少並且難于發現,孢子體直立,蒴柄細長,孢蒴規則長卵形,蒴帽兜形。
  3. The effect of exit back pressure and length / height ratio of isolator on forebody / inlet flow field is analyzed and discussed in the paper

    本文還研究了隔離段出口反壓及隔離段長高比對進氣道流場的影響。
  4. Within the field of ground effect, aerodynamic forces of the wing - in - surface effect crafts are not only decided by the angle of attack, but also by the flying height, and they lead to more complicated stability problems

    在地效作用區域內,地效飛機的氣動力不僅與迎角有關,而且與飛行高度有關,因而其飛行穩定性問題更為復雜。
  5. The method of applying monoclinal water storage structures in determining dynamic water level emphasizes on experimental calculation of the height of artesian water followed by picturing hydrodynamic field in couple with limited available data of groundwater level

    採用單斜儲水構造來確定水動力場的特徵,其核心步驟為引用試演算法,確定承壓水形成高度,然後結合研究區僅有的地下水位資料,刻畫水動力場。
  6. The great bustard is polyphagia bird, but it feeds mainly on plants. the feeding field habitat selection relate with that whether the grassland burn or not last year. the important factors that determine the feeding field selection are the plant species, vegetative cover score. density hemerrocallis minor and the density of pedacularis sp. on burning grasslandsjthe density of vegetation. insects quanlity. plant species richness and the height of plant are the main factors that determine the feeding field selection on unburning grasslands

    大鴇是雜食性鳥類,但以植物性食物為主。對于取食地的選擇往往跟草原上一年是否被火燒過有關。在火燒地,植物種類數、植被蓋度、小黃花菜密度和蒿密度是取食地選擇的重要因素;在非火燒地,植被密度、昆蟲數量、植物物種豐富度及植物高度在大鴇取食地選擇中發揮重要作用。
  7. A recommend value of appropriate roadbed height is put forward according to the sand dune type and the highway grade, make investigation to the sand harm and other problems of built highways in desert areas gathering the related materials of present day highways, and then make comprehensive and systematic statistics to related data and racious factors which affect the roadbed height ; analy the suitable roadbed height for the windblown sand drift passes through smoothly according to the open country windblown sand field test ; test and verify the outcome according to indoor wind tunnel test ; finally a appropriate recommend roadbed height value will be put forward for different grade highways in different areas, which is according to the analysis of roadbed stability the roadbed height economic analysis and different use requirement to different grade highways

    收集現有沙漠公路的有關資料,對全國已建沙漠公路進行沙害及其他病害調查,對相關數據和影響沙漠公路路基高度的各種因素進行綜合系統地統計分析;通過野外風沙流場測定,分析適宜風沙流順利通過的路基高度;通過室內風洞試驗進行驗證;結合路基穩定性分析、路基高度的經濟性分析,考慮不同等級公路的使用要求,最終提出不同地區不同等級沙漠公路路基填土高度的合理高度建議值。
  8. ( 2 ) sxsp anomaly is closely related to the abnormity of 500hpa geopotential height field over the east of ural and yakutsk area, western ridge point and area of subtropical high, the cold air abnormity from north of china and the position of upper level westerly jet over east asia

    ( 2 )三峽庫區夏季降水異常與大氣環流異常密切相關:與500hpa烏拉爾山以東高度場異常、雅庫茨克以東高度場異常、副熱帶高壓面積及西伸脊點、北方冷空氣異常、 200hpa東亞高空西風急流位置異常偏南(偏北)密切相關。
  9. This dissertation is consisted of two parties , and these as following are its main content - first , we have looked backward into the academic origin of suwen ( 素 問 ) collative school. this dissertation has sorted out a clue that the learning developed from the field of plain - ology to the field of the medicine. when qian - jia plain - ology was at its height , the object of textual research of anhui - school plain - ology had extended from confucian sutra to the astronomy and geography , historical institutions , medicine , agriculture , calendar , etc. due to extending to medicine books , a system of textual research that belonged to anhui - school plain - ology , and its contents of study relate to many ways of medicine , such as neijing ( 內 經 ) 、 shanghan ( 份 寒 ) 、 bencao ( 本草 ) and other subjects of clinic

    本論文首次整理展示了一條由樸學向醫學領域滲透的學術發展軌跡。乾嘉樸學鼎盛時期,皖派樸學的考據對象已從儒家經書擴展到醫學、農業、歷算等科技典籍。向醫學文獻的滲透,很自然地形成了一條皖派樸學醫學考證流派體系,內容涉及醫學諸多方面,如《內經》 、 《傷寒》 、 《本草》以及臨床諸科, 《素問》校詁則是其中的重要內容。
  10. The paper introduced the definition and sort and field arrangement and remote monitoring of field sensor ( a new combination of remote monitor and control and network and sensor ). then tried to make use of transfer image to reconstruct tree diameter at breast height through stereo vision, the result was fairy well to realize measure diameter without field survey

    首先對其定義、種類、外業設置及遠程監控操作做了簡單的介紹,然後嘗試利用原野服務器傳回的圖像,通過立體視覺技術重建遠隔地樹木的胸徑,得到了較為滿意的結果,從而實現了不到現地便能夠測量直徑的目的。
  11. The features of the interannual relationship between winter sea - ice extent of davis strait and rainfall of north china and the interdecadal variability of its interannual relationship are analyzed by using uk / gisst sea - ice data - set of hadley, monthly 500hpa height field of ncep / ncar reanalysis data and monthly rainfall data from 160 stations in china

    選用英國hadley氣候研究中心的uk gisst海冰面積指數資料集、 ncep ncar逐月再分析資料500hpa位勢高度場資料和中國160站降水資料,分析了冬季戴維斯海峽海冰面積變化與華北夏季降水年際關系及其年代際變化。
  12. Second, by computing the trajectory of the missile and the method of analyzing cep, influences that the fighter ' s height, speed, pitch angle, the deflection angle between fighter and target, and the target moving characters make on the times of fighter attack and missile launch are deeply developed. third, by relating the motion of the missile and the fighter, the influences that fighter ' s dive angle and the deflection angle between fighter and target make on the attack field of the fighter are discussed in this paper when the fighter perform vertical and horizontal attack. criterion of attack effect is proposed focusing on attack time of the fighter, trajectory of the missile and destruction probability to the target

    本文主要完成了以下幾個方面的工作:對導彈可發射區和飛機可攻擊區進行建模,通過對導彈彈道的模擬計算,並運用典型的圓概率偏差精度分析方法,詳細討論了飛機實施攻擊時,飛機的飛行高度h 、速度v 、俯仰角、與目標的偏離角_ x及目標運動特性等對飛機攻擊時機和導彈發射時機的影響;因此,將飛機和導彈結合起來,詳細研究了飛機在垂直平面和水平平面內實施攻擊時,飛機俯沖角和與目標的偏離角_ x對飛機的攻擊范圍的影響;以飛機實施攻擊的時間t 、彈道特性和對目標的殺傷概率p來評判對地攻擊的效果;最後給出典型算例,通過對空地攻擊過程的模擬實現,對飛機飛行過載提出要求。
  13. Between the cannons on the height stood the general in command of the rear - guard and an officer of the suite scanning the country through a field - glass

    在這座高地的幾尊大炮之間,一個率領后衛部隊的將軍隨同一名侍從軍官在前面站著,並用望遠鏡觀察地形。
  14. A sil flying head is designed to keep the distance between sil and recording medium in near - field range. a sil optical data storage system is built up when the recording head is combined with sil flying head. meanwhile, using astigmatic focusing error detection technology and twin optical pick - up heads, a novel nontouching nanometer measurement method is developed to measure the flying height of sil, and provides us with a powerful tool to optimize the design of sil fly head

    在sil存儲技術研究方面,首先提出一種光學玻璃熱熔加工製作sil的新方法,該方法克服了小半徑球透鏡加工的難題,成功製作出了半球固體浸沒透鏡;設計了sil飛行頭系統,並利用光學頭像散法聚焦誤差檢測原理,設計出一種雙光學頭sil飛行高度測量方案,實現了sil飛行頭飛行高度的測量。
  15. 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。
  16. It is concluded : the determination of the center spacing may be conducted under the permissible elevation of the exit line of seepage surface on slope surface downstream. in the end, the author has analysed the seepage field what the holes are placed two rows along the slope height

    另外,在對比多種孔距的方案分析結果的基礎上,得出結論:排水孔孔距變化對邊坡滲流場沿邊坡走向方向水頭分佈影響明顯,布設排水孔應根據目標降深確定排水孔孔距。
  17. In this paper, high heat penetration into a moving particulate bed is described mathematically with a comprehensive heat and mass transfer model. the distribution of gas velocity and pressure, the temperature field of gas and solid in the moving particulate bed are examined for different conditions. the results show that thermal penetration into the moving packed - bed particles by fluid flow in porous media is high only in the position near the gas entrance. the thermal penetration thickness tends to increase with the fluid flow velocity and decrease with the particle moving velocity. in the region of thermal penetration, the porosity of solid bed has significant effect on gas field and pressure loss. it is feasible to reduce the gas pressure loss by a larger width / height packed bed in design and operation. the correspondence between thermal infection depth and particle bed height would be helpful to keep high oapacity of reactor and reduce the cost of operation

    針對移動顆粒床中物料層內的高溫氣體滲流傳熱現象,考慮滲流與傳熱的相互作用,採用局部非熱平衡假設建立了多孔介質滲流傳熱物理數學模型並進行了數值計算.研究了不同情況下床內填充多孔介質中的流速、氣固溫度和床層壓力損失.計算結果表明,高溫熱氣對移動床顆粒料層的熱滲透主要發生在滲流入口端區域,增大入口滲流速度以及減小床層物料下移速度將導致物料溫度沿床高慢速下降,熱滲透深度擴大,熱滲透作用區域內的物料溫度水平提高.在熱滲透作用區域,孔隙率對流場和壓力損失有很大的影響.研究結果對于移動顆粒床反應器的設計與運行具有一定的參考作用
  18. The explaining for region gravity and magnetic data is accomplished by using result of potency field transformation through level and vertical relating with level one - difference of several height and vertical two - difference and working out construct map of region geophysics

    對區域重磁資料的解釋就是利用位場變換結果,是通過不同延拓高度的水平一階導數、垂向二階導數圖的解釋,再進行水平和垂向關聯,編制區域物探構造圖的方式實現。
  19. The results show that in a rectangular tunnel with bigger dimension of the width, field strength of horizontal polarization mode is markedly higher than that of vertical polarization mode, influence of the height change on the field strength is stronger than that of the width change, and the difference of influences decreases with the increasing of frequency and transverse dimension

    結果表明:在寬度尺寸大於高度尺寸的矩形巷道中,水平極化模式的場強明顯高於垂直極化模式,高度尺寸的變化對場強的影響比寬度尺寸的變化要大,這種影響差異隨頻率的增高和截面尺寸的增大而變小。
  20. By using ncep / ncar reanalysis data of height and wind, the inter - monthly lpac map, the climate lapc map, inter - annual anomaly map and mean variance map of monthly wind field of 850 and 500hpa and monthly height field of 850, 500, 150, 30hpa are calculated in a globe - belt area, which situates between 30 s and 75 n, from december 1957 to december 1997, according them we analysis the rule of the season transfer and anomaly of nh mean circulation. the results show that the climate map of lapc can describe the seasonal transfer process of large scale circulation better. the advance process of summer circulation establish is form south to north at the middle and lower level of the troposphere, that is reflected primly in the inter - monthly wind and pressure map of lapc ; at lower lever of stratosphere, the establish process is simulate to that of troposphere, and reflect of process of that the south asia high toward plateau ; at middle stratosphere the summer circulation establish begins at middle and high latitude initially, and then transmits to low latitude gradually, while the seasonal variability in mid - stratosphere is stronger than it in troposphere and low - stratosphere

    利用ncep ncar再分析高度場和風場資料,計算了30 s 75 n球帶區域1957年12月至1997年12月逐月850 、 500hpa風場及850 、 500 、 150 、 30hpa高度場月際局地型相似系數圖、多年平均圖(即氣候lpac圖) 、年際異常圖及均方差圖,在此基礎上,分析了北半球平均環流季節轉換及其異常的規律。分析表明,氣候局地型相似系數圖較好地給出了大尺度環流季節轉換發生的過程:在對流層中、下部,風、壓場月際局地型相似系數圖清楚地反映了夏季型環流建立由南向北的推進過程;低平流層夏季型環流的建立與對流層接近,其中,南亞高壓上高原過程有明顯反映:中平流層,夏季型環流的建立明顯表現為從中、高緯度開始,逐步向低緯傳播的特徵,且變化較對流層和低平流層明顯。
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