economic density 中文意思是什麼

economic density 解釋
經濟密度
  • economic : adj. 1. 經濟學的;經濟(上)的;實用的。2. 〈罕用語〉經濟的,節儉的。3. 〈委婉語〉故意隱瞞的。
  • density : n. 1. 稠密;濃厚。2. 【物理學】濃度;密度;比重。3. 愚鈍,昏庸。
  1. Nowadays the development of abyssal aquaculture cages is playing an increasingly important role in the sea farming industry in china but meanwhile, there are still some problems arising the sea farming industry in china focus on shoals and bays with good protection in which the water depth is small while the aquaculture density is large. these factors in addition to the pollution problems in the coastal gone have descended the quality of fishes, thus have had some negative effects on the economic benefits

    目前我國海水網箱養殖業發展迅速,日漸成為漁業發展中的一個重要產業,在發展的同時,也暴露出一些問題:我國海水養殖主要在淺灘、掩護較好的海灣內,水深較淺,養殖密度大,加上近岸水域的污染,使魚品質下降,經濟效益受到一定影響。
  2. The method of the model retrieval breaks down the traditional population density statistics method according to the administrative area boundary and changes to evenly distributed and same size grid units to compute the population density. it enriches the methods to obtain the population density indexes and increases the accurate degree and application fields of the indexes. so, it will benefit to the decision process of the population and economic policy, benefit to the sustainable development of regions

    這種模型反演的方法,突破了傳統的按行政區界線統計人口密度的方法,改為按照均勻分佈、規則大小的格點單元來計算人口密度,豐富了獲取人口密度指標的方法,提高了人口密度指標的精確程度和應用范圍,將有利於人口、經濟政策的決策過程,有利於區域可持續發展。
  3. According to basic principle and application experience of black light lamp, the trapping lamps were opened out using the principle of wave, color and taste to trap insect pests imago with the electric networks of frequently vibration and high voltages, it can trap many species and amounts of insect pests, reduce amounts of field ovum, greatly reduce insect pests density, save energy, have low lost, little harm to natural enemy and persons and livestock, have remarkable economic, ecological and social efficiency

    摘要借鑒黑光燈的基本原理和應用經驗,再配以頻振高壓電網觸殺的頻振式殺蟲燈,誘集的害蟲種類多、數量大,既大幅度降低了田間落卵量,又顯著減少了蟲口密度;節能省電,成本低;葉昆蟲天敵殺傷力較小,對人畜安全,不污染環境,具有顯著的經濟、生態和社會效益。
  4. Based on the relationship among recovery, well spacing density and injection - to - production - well ratio given by reference [ 1 ], inte - grated with other methods such as economic evaluation and injection - production balance analysis, etc., this paper proposes a new method for determination of reasonable well spacing density and injection - to - production - well ratio in waterflooding field

    依據文獻[ 1 ]中提出的採收率與井網密度和注采井數比的關系,並結合經濟評價和注采平衡分析等方法,提出了一種新的確定水驅油田合理井網密度和合理注采井數比的方法。
  5. In it, studies are carried out such as the combustion theory analysis of biomass briquetting, equipment design, thermal performance test, air flow field test, density field test in the hearth, temperature field test, the dreg characteristics, main design parameters and technological and economic evaluation, and so on. the author has gained all kinds of indexes of the equipment and the changing laws of air flow field, temperature field, density field, dreg and main design parameters. this will lay theoretical foundation on design, operation and technology improvement, meanwhile, this will offer actual guidance for development of equipment

    本文通過對「生物質成型燃料燃燒設備設計」 、 「生物質成型燃料燃燒設備熱性能試驗」 、 「生物質成型燃料燃燒設備空氣流動場試驗」 、 「生物質成型燃料燃燒設備溫度場試驗」 、 「生物質成型燃料燃燒設備爐膛內氣體濃度場試驗」 、 「生物質成型燃料燃燒設備結渣特性試驗」 、 「生物質成型燃料燃燒設備主要設計參數確定試驗」及「生物質成型燃料燃燒設備技術經濟評價」等方面的系統研究,獲得了生物質成型燃料燃燒設備各項性能指標及燃燒空氣流動場、溫度場、濃度場、結渣性能、主要設計參數變化規律。
  6. Under high population density and lagging productivity, zhijin has inherited traditional approaches to develop local economy, which has led conflict between ecological and economic system being conspicuous

    較高的人口密度和落後的生產力之下,織金縣承襲了傳統的發展模型,導致生態系統和經濟系統間的矛盾越來越突出。
  7. Relationship between the population density of schizotetranychus nanjingensis with the bamboo output and the determination of economic threshold

    南京裂爪蟎種群密度與新竹產量的關系及經濟閾值的研究
  8. By means of determining the mature and quantities of distribution, assemblage and transfer layers in distribution system, the conclusion is made that in perfect situation, the optimal distributing construction depends on distance and density of requirement, and then, the method to define distribution framework and optimal hierarchy according to economic scale in practice is put forward

    通過對配送系統運作中的分貨、集運與運輸中轉分層的定性與定量分析,從而得出在理想的狀態下,運輸最優的配送結構主要取決于距離和需求點密度的結論,並給出了實際問題中結合經濟規模確定最優層次的方法。
  9. Magneto - electronics lies in the area of current scientific interest in condensed matter physics and material sciences, due to abundant physical conceptions and applied potentials. it is a base of magnetic devices with high density and sensitivity. recently, non - volatile magnetic computer memory ( mram ) is expected to have a large economic impact, and has been significantly focused on its experimenatal research

    目前,非揮發性磁存儲記憶器件?磁存儲器magneticrandomaccessmemory ( mram )的研究和開發已成為自旋電子學研究的主要應用目標;而在室溫和低磁場下,具有足夠大的磁電阻( mr )效應成為實現mram器件應用的前提。
  10. The lower density and higher strength are the most obvious characteristics of lightweight aggregate concrete ( lwac ). this new material has significantly economic and social value when it is applied to some special projects such as large - span bridges and high buildings

    輕集料混凝土的輕質高強等顯著優點,使其在大跨度橋梁,高層建築等工程中應用中具有巨大的技術經濟優勢和突出的社會效益,正成為現代混凝土的一個重要發展方向。
  11. During the research on substation location in rural power subsystem planning, builds space optimal model on the basis of theory of christaller ? center geography, which utilizing economic supply radius to optimize the number of substations based on the average load density. with the reference of the said number, uses the method of alternative address selection to achieve the optimal solution

    在農村電網變電所布局子系統規劃研究中,以克里斯塔勒的中心地理論為基礎,建立了基於gis的變電所布局空間優化模型,該模型利用經濟供電半徑優化平均負荷密度下的變電所數量,並以此為參照,採用交替選址分劃法求得變電所的合理布局。
  12. At the same time, it states the dominant industry for each district, and defines growth pole of beijing suburbs on the basis of density of dominant industry and economical level for each district. finally, the paper demonstrates that it is necessary to build economy growth pole model of beijing suburbs on the beginning of 21s1 century on analysis of relations among dominant industry, growth pole and economic growth point, discusses evolvement rules about pole - core space structure phase. point - axis space structure phase and network space structure phase, analyses which space structure phase beijing suburbs is in, and brings forward point - axis developing model, then explains definition of point - axis developing model and important meanings for economy development of beijing suburbs, referring to principle of point - axis developing model, the paper proposes economy growth point model, and offer the policy and suggestion for government corresponding to the problems of application of economy growth point model

    最後,通過論述主導產業、增長極與經濟增長點的相互關系,闡述了從產業和地區角度對主導產業和增長極進行綜合分析以構建21世紀初北京郊區的經濟增長點模式的必要性,探討了極核式空間結構階段、點軸式空間結構階段、網路空間結構階段這三種空間結構的演變規律,分析了21世紀初北京郊區所處的空間結構階段,提出了點軸開發模式,從點? ?軸開發的定義、對北京郊區經濟發展的意義進行了論述,進一步通過對點? ?軸空間結構系統的形成機理分析,借鑒點? ?軸開發的原理,提出21世紀初北京郊區的經濟增長點的構建模式,並針對這種模式構建中存在的問題,對政府工作提出了可行性建議。
  13. The spd model is made by the ins titute of geographical sciences and natural resources research of chinese academy of sciences. it combines social economic factors, such as city and transportation foundational facilities, with nature factors, for example the digital elevation model ( dem ) and net primary productivity ( npp ) of plants to simulate the spatial distribution of population density of china by the advanced grid generation technology

    中國模擬人口密度模型是由中國科學院地理科學與資源研究所首先提出的,這個模型試圖利用先進的格網生成技術,將城市、交通基礎設施等社會經濟因子和陸地數字高程( dem ) 、陸地植被凈第一性生產力( npp )等自然因子相結合,通過模型的反演,模擬某一時期的中國人口密度空間分佈狀況。
  14. While the deposition of the aerosols also have something to do with the local ecosystem, the impact of the exchange and deposition of the aerosols between continent and ocean can not be negligible because of the high density population, relatively active economic activities, relatively high intensity pollutants emission in the coastal areas

    沿海地區稠密的人口,較為發達的經濟活動,較高的大氣污染物排放強度,使得陸海氣溶膠的交換和沉降對該區域的環境具有不可忽視的影響。
  15. The density of population is low, meagerly - populated, live and disperse ; the economic base is weak, rely mainly on the fact that self - sufficient basically ; the ecological environment is fragile ; unreasonable industrial structure, the secondary industry and the third developing of the industry are slow

    人口密度低,人煙稀少,居住分散;經濟基礎薄弱,基本以自給自足為主;生態環境脆弱;產業結構不合理,二、三產業發展緩慢。
  16. Lithium ion batteries have many excellent performances among the chemical power sources such as the highest work voltage and energy density, longer cycle life and better safty, etc., which make them show the wide prospects of application and latent enormous economic effectiveness in many respects, for example, portable electric devices, electromobile, space technology, national defence industries, and so on

    鋰離子電池具有高工作電壓、高比能量、循環壽命長、安全性能好等諸多優異的性能,從而在便攜式電子設備、電動汽車、空間技術、國防工業等多方面展示出廣闊的應用前景和潛在的巨大經濟效益;而高性能的鋰離子電池陽極材料的制備及性能研究是目前鋰離子電池開發乃至應用的關鍵因素之一。
  17. Thirdly, based on a comparative analysis of urbanization level, space density, municipal utilizes development, and a number of economic and technical data in property development and building industry in east, west and central china, it is concluded that there are tremendous differences in building industry between the west and the east area ; gaps in urban and rural construction and development between the west and east area are embodied by urbanization level ; construction and building industry occupies a protruding position in western economy, but industrial efficiency, technological and equipment level are weak links hindering further development and competition of the region ; the extent to which the real estate market develops is a sever barrier to normal development of property industry in western region

    第三,在社會經濟發展比較的基礎上,界定了東西部建設行業技術經濟比較的范疇及指標體系,通過對東、中、西部城鎮化水平、空間密度、城市首位度、城市市政公用設施建設水平和房地產、建築業發展指標等技術、經濟數據的比較、實證分析,筆者得出了東西部地區在建設行業發展上存在較大差異,東西部地區城鄉建設和發展差異主要表現在城鎮化水平上;建築業在西部經濟中佔有突出地位,但行業效益和技術裝備水平是進一步發展和競爭中的薄弱環節;房地產市場的發育程度嚴重製約著西部地區房地產業的正常發展等主要結論。
  18. The main purpose of this article is to research the new method to express the spatial distribution of region population density that is an important economic element, by using the grid generation technique and the data fusion theory. the main research method is to achieve the simulation and spatial expression of the population density index with the help of computer tools

    主要研究方法是藉助計算機工具實現人口密度指標的模擬和空間表達,主要成果是在應用國際上較為先進的數據融合理論,在引入格網生成的空間數據計算和表達方法的基礎上,模擬生成了中國的人口密度空間分布圖。
  19. Abstract : to reduce production cost of industrial grade silicon, 24mva electric furnace is technicallly transformed, thus the power density in furnace center is raised, power into the furnace and the output are increased 13 and 20 respectively, unit product cost is deduced. the economic benefit is very well

    文摘:為降低工業硅的生產成本,對2 . 4mva工業硅電爐進行了技術改造,提高了爐心功率密度,使入爐功率增加13 ,產量提高20 ,單位生產成本降低,取得了較好的經濟效果。
  20. To explain the changing quantity of the population density, this paper using a quadratic function, to constitute a metropolitan spatial structure varying model, and find that income variable is a exlpanatory variable for metropolitan spatial structure change, and economic industry spatial changing quantity has no relationship with population density spatial distribution changing on metropolitan areas, and the policy implications of the explanations should be briefly discussed

    在人口密度空間結構變化量上,本文利用二次方函數建立都會區空間結構變化模式,並透過影響都會區空間結構的解釋變數,發現所得因素是解釋都會區空間結構變化的一個變數,經濟產業活動在空間上的變化量和人口在空間變化量無關,該測試結果並形成未來都會區發展政策上應注意的課題。
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