range expansion 中文意思是什麼

range expansion 解釋
分佈區擴大
  • range : vt 1 排列;整理(頭發等)。2 使歸類[班、行、隊];把…分類。3 〈用被動形或反身形〉加入,站住…的一邊...
  • expansion : n 1 張開,伸展。2 擴大;擴建;展開;發展。3 廣袤,遼闊。4 擴張物,擴大部分。5 (講題等的)詳述,...
  1. The studies indicate that different content of pyrophyllite and dolomite can cause the following three cases : ( 1 ) making the refractory point decrease linearly and, to some extent, influencing the microstructure and properties of sintered body ; ( 2 ) acceleratingmullite formation during sintering, reducing thermal expansion coefficient of bond, reinforcing the matching nature and improving the flexural strength and shock strength ; ( 3 ) preventing sic grinding tool from generating black core, expanding suitable sintering temperature range of sic grinding tool

    同時,也不同程度地影響了磨具燒結體的微觀結構和性能; ( 2 )可促進在燒結過程中莫來石的形成,降低結合劑的熱膨脹系數,加強了結合劑與磨料的匹配性,提高了磨具的抗折強度和抗沖擊強度; ( 3 )在一定溫度范圍內還可防止碳化硅磨具出現黑心現象,拓寬了碳化硅磨具的燒結溫度適應范圍。
  2. It can be used not only to change the fire precision of the base bleed projectile, but also to improve the effect of reduction drag and expansion range. the calculating model of the secondary expansive pressure of the burning gas is constructed by means of analysis of the experimental resuits, it has been confirmed that the new base bleed unit can be designed, with the secondary expansive principle of the burning gas pressure. the engineering project of a hybrid base - bleed - rocket high - level efficient extended - range projectile is designed, with the secondary expansive principle of the burning gas pressure, the feasibility and the true worth of its engineering applications is validated in theory

    本文提出了底排燃氣壓力不隨外部壓力變化,既可改善底部彈射擊精度又可提高減阻效果的二次擴張原理,建立了底排燃氣二次擴張壓力的計算模型,並通過採用二次擴張原理的新型底排裝置與傳統底排裝置的對比試驗,驗證了新型底排裝置結構實現的可行性;完成了基於底排燃氣二次擴張高效增程原理的底排?火箭復合高效增程彈方案設計及其有關計算,從理論上驗證了其工程應用的可行性和實際價值。
  3. 1960 the start of the cold war saw the rapid expansion of bases to counter the soviet union, including medium - range bomber bases around the soviet periphery

    冷戰開始后,為了對抗蘇聯,基地得以迅速擴建,其中就包括蘇聯周邊地區的中程轟炸機基地。
  4. But it also includes two fatal disadvantages : first, at is difficult to be sintered and its density is low, which causes its lower strength ; second, in the temperature range of 1023 - 15 73 k, at can decompose into al2o3 and tio2 easily, which can cause the stress concentrated and raise the heat expansion rate

    但是該材料本身存在的兩大致命的缺點,在很大程度上限制了它的廣泛應用: ( 1 ) 、鈦酸鋁難以燒結,燒結體的緻密度低,因而強度不高; ( 2 ) 、在750 1300的溫度范圍內易分解成氧化鋁和二氧化鈦,造成材料內部應力集中,並使材料的熱膨脹率升高。
  5. In this paper, the target radiate characteristics and waveband selection of the infrared system reviewed briefly ; the suppression of the stray radiation in the infrared sub - system is discussed ; the material selection, the support structure and optimization of the primary mirror in the infrared sub - system of the theodolite, every factor which will affect the surface figure of the mirror is discussed in detail and get the result that in the circumstance of shooting range, the primary factor which affects the surface figure of the mirror in the infrared sub - system is temperature changing, this ca n be resolved by using material of low expansion coefficient and using same material in the mirror and the mirror seat

    本文將對紅外系統的目標輻射特徵分析和波段選擇進行簡要回顧,討論紅外系統中雜散輻射的抑制,並詳盡分析經緯儀紅外光學系統設計中所涉及到的反射鏡的材料、支撐、結構和優化設計等問題,認真討論和分析影響主鏡的面形精度的各種可能因素。並指出:在靶場環境下影響經緯儀紅外分系統主鏡面形精度的主要原因是溫度的變化,這種情況可通過選擇低線膨脹系數的材料並且使鏡座和反射鏡採用相同的材料予以解決。
  6. By simulate running, this greenhouse has these advantages : the circuit is simple ; the degree of intelligent of the greenhouse is in a high level, and the control ability is reliable, which can control the environmental factor in the greenhouse within a certain range. ability of anti - interference of corresponding system is high, and hot plug can be realized, which made systematic expansion easy

    經過模擬運行,該溫室具有這樣的優點:電路結構簡單;溫室的智能化程度高,控制能力可靠,它可以將溫室中的環境因子控制在一定的范圍之內;整個溫室的通信系統抗干擾能力強,而且可以實現各個通信模塊的熱拔插,非常便於系統的擴展。
  7. " we will also leverage our brand equity to expand our product range into apparel, eyewear and other accessories through licensing. the greater china will remain our core market, but active network expansion will be pursued through agency arrangements

    集團計劃透過品牌專利令產品系列更多元化,發展時裝、眼鏡及其他配飾,進一步提升品牌的價值。大中華地區依然是集團的重點市場,但集團亦會透過代理形式積極拓展海外零售網路。
  8. Manufactures and distributes rubber products for agricultural and industrial applications. product range includes hose assemblies, gaskets, expansion joints and fittings. us based

    -主導產品隔膜閥蝶閥,應用於核電站火力發電廠食品制藥鋼鐵聯合企業給排水等領域。
  9. Abstract : biological invasions are a continuous feature of a non - equilibrium world, ever more so as a result of accidental and deliberate introductions by mankind. while many of these introductions are apparently harmless, others have significant consequences for organisms native to the invaded range, and entire communities may be affected. here we provide a survey of common models of range expansion, and outline the consequences these models have for patterns in genetic diversity and population structure. we describe how patterns of genetic diversity at a range of markers can be used to infer invasion routes, and to reveal the roles of selection and drift in shaping population genetic patterns that accompany range expansion. we summarise a growing range of population genetic techniques that allow large changes in population size ( bottlenecks and population expansions ) to be inferred over a range of timescales. finally, we illustrate some of the approaches described using data for a suite of invasions by oak gallwasps ( hymenoptera, cynipidae, cynipini ) in europe. we show that over timescales ranging from 500 10000 years, allele frequency data for polymorphic allozymes reveal ( a ) a consistent loss of genetic diversity along invasion routes, confirming the role of glacial refugia as centres of genetic diversity over these timescales, and ( b ) that populations in the invaded range are more subdivided genetically than those in the native range of each species. this spatial variation in population structure may be the result of variation in the patchiness of resources exploited by gallwasps, particularly host oak plants

    文摘:生物入侵是不均衡世界的一個永恆話題,尤其是當人類有意或無意地引入物種后.很多引入顯然是無害的,但另外一些則有著嚴重的後果,會給入侵地的生物以至於整個生物群落造成影響.本文總結了分佈區擴張的常見模式,概述了它們對遺傳多樣性和種群結構式樣所造成的影響.描述了如何根據以一批遺傳標記所得到的遺傳多樣性式樣來推斷入侵途徑,來揭示伴隨擴張選擇和漂變在形成種群遺傳樣式中的作用.本文對日益增多的群體遺傳學方法進行了總結,這些技術可以用來在不同的時間尺度上推斷種群規模所發生的巨大變化(瓶頸效應及種群擴張) .最後,我們以歐洲櫟癭蜂(膜翅目,癭蜂科,癭蜂族)一系列入侵的數據為例對一些方法進行了說明.從500 10000年的時間尺度上,多態的等位酶位點上等位基因頻率的數據表明: 1 )遺傳多樣性沿入侵路線呈不斷下降的趨勢,支持了冰河期避難所作為遺傳多樣性中心的作用; 2 )入侵地區的種群與該物種原產地的種群相比,遺傳上的分化更為強烈.這種種群結構在空間上的變異可能是被櫟癭蜂開發的資源尤其是櫟樹寄主在斑塊上出現變異的反映
  10. At present, the police in our country mainly through the " unit administration mode ", which merely emphasizes the administration of the website units, to execute this administration. however, with the rapid development of internet and expansion of its function, this administrative mode is under great impact, simultaneously, the police with the mode is challenged in terms of its management range, its administrative function, its management conception and so on. consequently, it inevitably results in some problems during the isa, such as blurring the borderline of the management, losing the balance of the role orientation and ignoring the importance of the people online

    我們目前實行的是一種以網站提供單位為管理對象的「單位管理模式」 ,但隨著網際網路的高速發展和網路功能的大幅拓展,這一模式之下的公安機關的管理幅度、管理職能及管理理念等均受到了極大的沖擊,難以避免的出現管理邊界模糊、角色定位失衡、網上民眾邊緣化等弊端,加劇了網際網路上病毒與有害信息的傳播及涉網違法犯罪案件的上升,也致使網上警民關系的緊張和警力資源的嚴重不足。
  11. The calculated temperature coefficient of resistivity was 2. 80x10 - 3 k - 1 at the temperature range of 25 - 800. the thermal expansion coefficient ( tec ) was 8. 71 x l0 - 6 k - 1

    電阻率隨溫度升高而變大,具有典型的金屬導體特徵,計算的電阻溫度系數為2 . 80xlo一3k一, 。
  12. Particle ratios embody the chemical equilibrium driven by inelastic interaction during rapid expansion when the temperature decreases in the colliding system, the measured hadron ratios provide the chemical composition of the fireball at the chemical freeze - out point and access the baryon transporter stopping ) for the initial conditions at early stage of the collisions. in this paper, we study the anti - proton to proton ratio from ig7au + 197 au collisions, analyzing p / p ratio as functions of rapidity, transverse momentum and centrality at ^ / saw = 200gev and the dependence on the center of mass energy of p / p ratio, compared with the experimental results. it shows that the p / p ratio has n ' t obvious dependence on rapidity for mid - rapidity, but shows a slight increase trend with pt increasing in the range of pt < 1gev / c for mini - bias or central collisions, and rqmd shows a more remarkable correlation between p / p ratio and centrality than experiments do at snn = 200gev

    研究表明:對廠在中心快度區沒有明顯的快度依賴性,在越靠近邊緣快度區, p p呈下降趨勢;在對心碰撞或者最小無偏事件中, p p在低橫動量區域隨著橫動量的升高而增大; p隨著碰撞對心度的比實驗結果表現出稍強的隨對心度增大而減小的趨勢,尤其是有再散射ujrqmd模型;在中心快度區, p p隨著碰撞的質心能量的提高而快速的增大,與實驗結果一致;在低能,有末態粒子再散射的d較好的預言了的:但是在mc能量下,有末態粒子在散射的d所預言的p p值比實驗值要小。
  13. There are already a range of yellow pages - like mobile content services on the market. ( nokia has relationships in europe with most of the local directory publishers and uses their data to power its local search product. ) but the mobile needs and interests of consumers requires expansion way beyond traditional yellow pages content

    盡管在目前的黃頁以及白頁市場中存在多種版本用以支持手機內容使用,考慮到用戶對此類信息需求的不斷擴展,仍然需要大量的人力和物力的投入用於探索此類信息在手機搜索方面的使用。
  14. 2 ) based on the maxwell equations of nonlinear media, high - order coupled equations governing the evolution of two orthogonal polarization components of the same wave are derived by using multi - dimension derivation expansion method of singular perturbation theory, and the suitable application range is presented

    2 )利用奇異攝動多重尺度導數展開法,從非線性介質中的maxwell方程組出發,導出了包含高階攝動項的同一光波不同偏振分量的耦合高階非線性薛定諤方程,並給出了其適用范圍。
  15. Shibin wu ( optical engineering ) directed by yapei yang , jiahu yuan manufacturing technologies for large - aperture lightweight mirror are one of the development directions in advanced optical manufacturing technologies. the lightweight mirror has the incomparable advantages than that of the solid mirror. the lightweight mirror has overcome the mirror surface deformation caused by selfweight of the solid mirror, reduces or eliminates the deformation of thermal expansion in solid mirror surface induced by environmental temperature variations and temperature gradient appeared on mirror body. mechanical weight - reduction is one of the three lightening technologies for large - aperture mirror. the technology has the advantages of simple process, small technical difficulty, common equipment conditions and wide material selection range. the technology has been extensively investigated and applied in the technical field of optical engineering at home and abroad

    它克服了實心反射鏡因自重而引起的鏡面變形,降低或消除了實心反射鏡因環境溫度變化及鏡體溫採用機械鉆銑輕量化技術的輕型鏡研製度梯度的出現而產生的鏡面熱膨脹變形。機械減重輕量化技術是大口徑反射鏡輕量化技術的三種方法之一。它具有工藝簡單、技術難度較小、設備條件要求不高和選材范圍廣泛等優點,在國內外光學工程技術領域得到了廣泛的研究和應用。
  16. In addition to our plan to continue the horizontal expansion of kamboat s network of restaurant chain and bakery outlets, we shall develop an extensive and varied food and beverage product range with local and international appeal. " said mr raymond wong

    除了橫向擴展金龍船的酒家及餅店網路,集團將開發不同系列的食品及飲料產品,銷售予本地及海外市場。
  17. An improved high - resolution current - mode sorter is presented. its structure complexity is o ( n ), which is crucial to the expansion of its size, and its dynamic range is large. only one clock signal and one reset signal are needed. no biasing signal is required. the operation point is constructed according to the input current, so it is self - adaptive, which is very important for an all - purpose component. in average value circuit, subtraction circuit, winner - take - all ( wta ) circuit and control circuit, it has good performance even at a large input current. this sorter has high precision, high resolution and low power, as has been proved via hspice simulation. it can be implemented in the standard digital cmos technology and widely used in many fields, so it is of great value in applications

    提出了一種改進的高精度電流型排序電路.它的結構復雜性僅為o ( n ) ,便於擴展;動態范圍大;它是自適應的,工作點由輸入電流確定,故不需要偏置信號,這對作為通用器件使用的排序電路來說是很重要的.通過利用平均值電路、減法電路、 wta電路和控制電路,可以使該電路在大輸入電流下依然保持高性能. hspice模擬表明該電路具有高準確性、高精度、低功耗的特點.它能用標準數字cmos工藝來實現,可以被應用於很多領域,具有很高的應用價值
  18. The software can realize diagram paper design of over ten thousand kinds of specification of u - type expansion joints and the design range is dn25 - 1000mm, low pressure and middle pressure, with compensating value smaller than the 300mm

    整個軟體可完成u型、加強u型和型各種規格波紋管的設計;通徑25 - 1000mm 、中低壓下、補償量小於300mm的u型膨脹節上萬種產品的圖紙設計。
  19. According to the practical need, the paper put forward a new nonuniformity correction algorithm - adaptive linear subsection interpolation correction algorithm, which is the expansion of two - point correction algorithm. the approach is not only achieved the nonuniformity correction in large dynamic range, but also eliminated the effect of temperature excursion of detector responsibility on nonuniformit y correction

    根據實際需要,提出了一種自適應濾波分段線性插值的非均勻性校正演算法,它是兩點校正演算法的擴展,不僅具有較大的動態范圍,而且可以消除由於探測器響應特性溫漂現象對非均勻性校正的影響。
  20. Adres automatic dynamic range expansion system

    動態范圍擴展系統
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