region of variation 中文意思是什麼

region of variation 解釋
變化區域
  • region : n. 1. 地方，地域，地帶；地區；行政區，管轄區，區；左近，鄰近；（大氣、海水等的）層，界，境。2. 【解剖學；動物學】（身體的）局部，部位。3. （學問等的）范圍，領域。4. 〈罕用語〉天空。
  • of : OF ＝Old French 古法語。
  • variation : n 1 變化，變動。2 變量，變度，偏差。3 【語言】語尾變化；變體，異體；【數學】變分，協變；順列；【...
  1. The studies of plane heterogeneity are as follows : the text counts the parameters of the sandlayers " geometric shape of different sedimentous microfacies ; speculates the conditions of lateral communication by sandstone density according to the method brought forward by j. r. l. allen ; gets a group of parameters including the reservoir thickness, porosity and coefficient of permeability by using kriging method according to the data of logging results ; makes certain the direction of coefficient of permeability with variation function by modeling globosity function ; divides the sandlayers into five types by using the method of flowing cell based on three parameters, that is x h, kxh and h / h, and accounts the favorable region. on the base of above - mentioned studies, the text evaluates the heterogeneity of sandlayers and gives the resolutions to these problems to serve the development of the field

    Allen ）等人提出的統計方法，用垂向上砂體密度的界限來推測砂體側向連通情況；根據每口井的測井解釋資料，利用克里金插值法對外間進行插值，得到了一組反映儲層特徵在平面上變化的參數，包括儲層厚度分佈、孔隙度以及滲透率，並且成圖；利用變差函數法，通過球狀函數模擬，確定儲層優勢滲透率方向：根據流動單元法，以儲能系數、容積系數以及凈毛厚度比三個參數為依據，通過聚類分析方法進行流動單元劃分，並且按照參數特徵將其分為五類，統計各砂層有利流動單元區塊。
  2. Variation of mechanical property of marlite in process of karstification and weathering in three gorges region

    三峽庫區泥灰質巖石溶蝕作用的微觀研究
  3. The paper is mainly based on geography, ecology, sight ecology, region location theory and system theory. by interpreting the mss remote sensing image of 1970s and the tm remote sensing image of 1980s and the end of 1990s in keerqin sandlot based on background database and expert information, we have achieved the three periods vector data of land desertification of the research area, then we have disposed the data property by using the powerful spatial analysis function of arc / info and achieved the information extraction and analysis supported by arcview and erdas imagine. thus the rule of temporal and spatial variation of land desertification in keerqin sandlot is researched and the blueprint and countermeasures of the prevention and treatment of land desertification in keerqin sandlot are put forward

    本研究主要以地理學、生態學、景觀生態學、區位論和系統論為主要理論支持，通過對科爾沁地區20世紀70年代的mss遙感影像、 20世紀80年代和90年代末tm遙感影像進行基於背景數據庫和專家知識的解譯，獲得科爾沁研究區土地沙漠化的三期矢量數據，利用arc / info軟體強大的空間分析功能對屬性進行處理，並在arcview 、 erdasimagine軟體的支持下進行信息提取與分析，研究了科爾沁沙地土地沙漠化時空變化的規律，提出了科爾沁沙地土地沙漠化防治的構想與對策。
  4. Nowadays, the urbanization is developing rapidly. in cities, high buildings stand everywhere, green districts are decreasing, the environment is being polluted, and the living space is reduced day by day. at the same time, the development of national economy, the improvement of people ’ s life level and the changement of life style make the variation of people ’ s tourist consumption opinion and aesthetic opinion. they long for going back to nature. the rural areas have wide space, fresh air, graceful environment and rich rural culture, and all of these factors have extreme attractivity to citizens. so, the combination of graceful natural environment and origional agricultural landscapes in rural areas and the citizens ’ strong wish to expand leisure tourism forms the objective background of the interactive development of agriculture and tourism. agricultural tour is a new region of tourism development, and traveling agriculture is a new way of agricultural development. the interactive development of agriculture and tourism conforms to the demands of agriculture ’ s and tourism ’ s sustainable development, and also bring perfect promotion effects to the improvement of rural areas ’ economic benefits and the development of tourism

    農業旅遊是旅遊業發展的新領域，旅遊農業是農業發展的新途徑。農業與旅遊業的互動發展既符合農業和旅遊業可持續發展的要求，又對提高農村經濟效益和旅遊業發展起到了很好的促進作用。為探索如何綜合利用農業資源，合理開發旅遊項目，推動農業與旅遊業互動發展，本論文採用案例分析與區域綜合相結合、理論分析與實踐調查相結合等研究方法，嘗試性地提出了農業與旅遊業互動發展的涵義，從不同角度對其開發進行了模式構建，對農業旅遊產品和旅遊農業產品進行了分析，並在效應分析的基礎上揭示了農業與旅遊業互動發展的前景。
  5. A normal transform is introduced, and there are enough much grids in the region between the critical layer and the wall, where the variation of the disturbance is the quickest. the finite - difference of governing equations with fourth - order accuracy in the normal direction is utilized in full regions including points close the wall, and is very important for accurately discreting equations. the combination of global and local methods is implemented, and a new iterative formula is derived

    對于曲線坐標系下的拋物化穩定性方程，文中發展了求解的高效數值方法:引進法向變換，使得在臨界層與壁面之間的擾動量變化最快的區域有更多的法向網格點;導出包含邊界鄰域在內的完全四階精度的法向有限差分格式，這對方程精確離散至關重要;採用全局法和局部法相結合的方法及其新的迭代公式，大大加速收斂並得到更精確的特徵值。
  6. In this dissertation, the author analyzed plant biodiversity in yunmengshan forest region with field survey on plant species and forest vegetation, the results show that : the vascular plants in yunmengshan forest region include 548 species ( variation ) which belong to 319 genera, 98 families, the flora geographical composition are complex, the dominant characteristics of flora are temperate zone plants which account for 55 percent, herbaceous species occupy 75 percent exclusively. evaluating the threatened hierarchy of plants in yunmengshan forest region, the results show that the number of critically endangered species is 7, endangered species isll, vulnerable species is 53, lower risk species is79, safty species 376

    本文在對雲蒙山林區的植物物種、植被進行調查的基礎上，進行植物多樣性分析，研究結果如下：雲蒙山林區共有維管束植物98科319屬548種和變種，地理成分復雜，包括中國全部屬的15個分佈區類型，區系組成以溫帶成分為主，佔55 ；生活型譜中，草本植物種類占絕對優勢，比例為75 . 3 ；通過瀕危評價，得出雲蒙山林區植物極危種7種，瀕危種11種，漸危種53種，敏感種79種，安全種376種。
  7. In the ross sea region the occurrence of euphansia superba was very low. there was interannual variation in the distribution of euphausia superba, and it seems that the abundance decreased from 1992 1993 to 1999 2000 in the weddell sea region

    大磷蝦的豐度分佈有年際性的變化， 1992 / 1993 ， 1997 / 1998 ， 1999 / 2000三個年度間威德爾海海區大磷蝦的豐度有逐漸下降的趨勢。
  8. Five vegetation communities : herbosa, shrubs, coniferous forest, theropencedrymion, and evergreen broad - leaved forest in the red soil region of the lijiang valley are selected as the five successive stages of the typical restoration process of degraded ecosystems to study variation of structure and biomass of the vegetation of the five different stages

    摘要利用時空替代原理，選取灕江流域紅壤區退化生態系統恢復過程中具有代表性的草叢、灌叢、針葉林、針闊混交林、常綠闊葉林5個階段作為演替序列，研究自然恢復過程中各演替階段的植被結構動態和生物量變化。
  9. Genetic variation in 5 ' - upstream region and the second intron of h - fabp gene in nine pig breeds

    上游區和第二內含子的遺傳變異
  10. In the region north of brazil, although both wind speed and air - sea humidity difference have dramatic variations, the variation of latent heat flux is just ordinary in magnitude. the reason is that the variations of wind speed and air - sea humidity difference are out of phase with each other so that they decrease each other greatly

    在巴西以北的暖水區，盡管海氣濕度差的變化和風速的變化都較大，但二者在區域內總是反相，彼此削弱了對潛熱通量變化的貢獻，所以該區潛熱通量的變化振幅較小，最終由風速的變化主導潛熱通量的變化。
  11. Niche and genetic differentiation of several desert plants were detected to analyze the relationship between niches and genetic diversity of desert plants, test niche breadth variation hypothesis, and probe the reasons for haloxylon ammodendron endangering. in this paper, the study on plant community species diversity and genetic diversity in the region will provide scientific theory basis for conquering desert

    從物種多樣性和遺傳多樣性兩個層次上，闡明了荒漠地區的生物多樣性特徵；在分析幾種荒漠植物（堿蓬、叉毛蓬和梭梭）遺傳變異和生態位的基礎上，探討荒漠植物種的生態位與遺傳多樣性的關系，驗證關于生態環境與遺傳變異的生態位寬度變異假說。
  12. Numerical simulation of gravity variation in volcanic region

    火山地區重力場變化的數值模擬
  13. Climatic features of the variation of total solar radiation in yushu region

    玉樹地區太陽總輻射量變化的氣候特徵
  14. Take the gelmud - lhasa product oil pipeline as an example, the authors study and discuss some technical problems about pipeline construction in the permafrost region, including pipe laying methods to be selected, cathodic protection technology, weather and environment variation along pipeline route and environment control of pipeline route

    以格拉輸油管道為例，探討了凍土地區管道工程可選擇的敷設方式、油氣管道的電保護技術、氣候和環境變化對管道的影響以及沿線環境管理等方面的問題。
  15. Normally water resources is affected by human activities and climatic change, but it is affected mainly by climatic change in runoff forming regions located in the high and middle mountainous area in the northwestern china. river runoff in the hexi inland arid region all originates from the qilian mt. area and the change of mountainous runoff resulted from global weather warming up and will bring an important effect to the development of society and economy in the hexi region. so the response on mountainous runoff and its changing trends are analyzed on the basis of the measured data of precipitation, air temperature, and discharges observed from some weather and hydrologic stations in the studied area. the results show that seasonal variation of mountainous runoff in the hexi inland region is mainly affected by the river ' s geographical location and supply source, and the yearly change by precipitation and that in the west of the region by air temperature besides precipitation. there are some obviously regional differences in the influences of climatic change on surface runoff in the hexi inland arid region, that is, rivers runoff in the west of the hexi area have been increasing and rivers in the east part have been decreasing, and the rivers runoff in the central part presented slowly increase trend, such as the heihe river, but it is not quite obvious

    一般情況下，水資源的變化主要受氣候變化和人類活動的影響，但在位於我國西北內陸乾旱地區的中高山地帶，徑流的形成主要受前者的影響.甘肅省的河西內陸乾旱區是該省重要的工農業生產和經濟開發區，這里各項社會和經濟活動與出山徑流的變化都有著十分密切的關系.因此，筆者根據有關水文氣象臺站的降水、氣溫和徑流觀測資料，分析了以黑河、昌馬河、西營河等主要河流為代表的河西內陸區出山徑流的變化特徵與規律.結果表明，河西內陸區出山口徑流的季節變化主要受地理位置和河流補給來源的影響，而年際變幅則受山區降水量年際變化及變幅的影響十分明顯.目前，梨園河以西河流水量處于上升階段，梨園河以東的河流則處于下降的階段;以黑河幹流鶯落峽水文站年徑流為代表的走廊中部地區的出山口徑流正處於1990年開始的枯水段的上升段.但總體而言，河西內陸乾旱區出山口徑流的變化相對比較穩定.預計今後若干年內，河西內陸乾旱區東段河流出山口徑流的變化以偏枯為主，中段、西段河流出山口徑流的變化以平水或平水偏豐為主
  16. The trend of variation in the south region of jianghuai valleys is obvious in comparison with that in the north region, but tow regions have remarkable characteristics of interannual and interdecadal change in recent 50 years

    （ 2 ）近50年來江淮地區5 7月降水都呈上升趨勢，均具有顯著的年代際變化特徵，但南區變化趨勢比北區明顯。
  17. In this study, we have analyzed the time - space variation characteristics of global cross - equatorial flow ( cef ) at the lower and upper rroposphere. especially for the monsoon region of the eastern hemisphere. the ncep / ncar reanalysis dataset used in this study are from 1958 to 1997

    本文利用1958 1997年ncep / ncar逐月再分析資料，分析了全球各經度不同層次上越赤道氣流（ cef ）的時空分佈特徵，尤其是東半球季風區夏季的越赤道氣流。
  18. Characteristics of variation and disturbances in low - latitude ionosphere were investigated based on the data observed in hainan under different magnetic activities and solar activities including variations and disturbances of parameters in different ionospheric layers, behaviors of plasma drift and a comparison with other low - latitude ionospheric station. the disturbance propagations from high to low latitude region during magnetic storm time are also investigated with analyzing the data obtained from the east - asian high - middle latitude stations

    本文在觀測數據分析的基礎上研究了不同地磁活動和太陽活動條件下低緯電離層的變化和擾動特性，包括海南電離層各分層的參數變化和擾動特性，電離層漂移的變化特性，並與低緯度地區其他臺站進行了對比分析，還對暴時東亞地區高中緯度地區臺站的觀測資料進行了分析，研究了電離層擾動從高緯到低緯的響應過程。
  19. Forest resources variation along with the main rivers in typical forest region of changbai mountains

    長白山典型林區主要河流兩岸森林資源變化研究
  20. The variation of water and sand is studied under the influence of the rainfall and human activity, in the fore and after management of small watershed in gully region of the loess plateau

    摘要以西峰楊家溝小流域為研究對象，研究了在降雨和人類活動的影響下，黃土高原溝壑區小流域治理前後水沙變化。
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