相對成本向量 的英文怎麼說

中文拼音 [xiāngduìchéngběnxiàngliáng]
相對成本向量 英文
relative cost vector
  • 相 : 相Ⅰ名詞1 （相貌; 外貌） looks; appearance 2 （坐、立等的姿態） bearing; posture 3 [物理學] （相位...
  • 對 : Ⅰ動詞1 （回答） answer; reply 2 （對待; 對付） treat; cope with; counter 3 （朝; 向; 面對） be tr...
  • 成 : Ⅰ動詞1 （完成; 成功） accomplish; succeed 2 （成為; 變為） become; turn into 3 （成全） help comp...
  • 本 : i 名詞1 （草木的莖或根）stem or root of plants 2 （事物的根源）foundation; origin; basis 3 （本錢...
  • 量 : 量動1. （度量） measure 2. （估量） estimate; size up
  • 相對 : 1. （面對面） opposite; face to face 2. （非絕對的） relative 3. （比較的） relatively; comparatively
  1. The first one : fitting together ultimate values of every dimensions in one dimension - chain one by one, educing many equations by itself, calculating results, and comparing these results of close dimension to find maximal and minimal values. the second one : projecting all dimensions on two preestablished axis, then providing the solutions to analyze whether every projected dimensions is increscent or decreasing, and synthesize the effect of every projected dimensions to close dimension, educing many equations by itself, at last calculating the result of close dimension. the third one : according to monte carlo analysis, getting every dimensions " values from every dimensions " tolerances at random time after time, simulating the actual circumstances of mass production using these dimensions, and calculating reasonable results of close dimension economically

    鑒于這類系統在各大中小型企業的廣泛應用與相對滯后的研究水平，本文提出了三種新的能切實地解決目前尺寸鏈計算機輔助分析解算中存在的各種難題的設計方案，第一種方案將尺寸鏈中各組成環能取的極值組合起來，自動列方程組，求解每個組合情況下的封閉環尺寸，最後比較這些結果，得出封閉環的最大最小值；第二種方案將尺寸鏈各組成環向預先設定好的兩個方向投影，之後再分析各尺寸環投影分量的增減性，並且提供了組成環兩個方向上的投影分量增減性不一的復雜情況下的解決辦法，綜合組成環各投影分量的增減性，然後自動列出方程組，最後根據各組成環的投影分量以及所列的方程組來確定尺寸鏈封閉環的尺寸；第三種方案以蒙特卡洛法為原理，在尺寸鏈各組成環的取值范圍內使用計算機產生大量隨機數，模擬實際大批量生產中的零件尺寸分佈情況，以更經濟更合理的方式分析、計算封閉環尺寸。
  2. Some conclusions are drawn : 1 ) effect of inertial force from superstructures on the lateral seismic response of single pile can not be ignored ; 2 ) the lateral seismic response of single pile induced by far - field earthquake are mainly affected by acceleration mass of superstructure > site eigenperiod. it increases with the increment of accele ration and mass of superstructure. as the site characteristic frequency approaches the self - oscillation frequency of the pile, sympathetic vibration occurs and the value of lateral seismic response reaches maximum ; 3 ) as the stiffness ratio of pile to soil increase, the relative displacement of pile to soil increases ; 4 ) the lateral seismic response of fixed - head pile is much smaller than that of free - head pile

    將其解析解與具體的的抗震設防烈度和場地特徵周期結合起來，計算分析了成層地基中單樁的橫向地震響應，得到了以下結論： 1 ）上部結構慣性力對樁的橫向地震響應的影響不可忽略； 2 ）成層地基中的單樁的橫向地震響應主要受地震基本加速度、場地特徵周期、上部結構質量的影響，隨地震基本加速度、上部結構質量的增大而增大；場地特徵頻率越接近樁基自振頻率，樁基地震響應越大，等於自振頻率時，由於發生共振現象，樁基響應幅值最大； 3 ）樁土剛度比越大，樁土之間的相對位移的幅值越大； 4 ）樁頂固接的連接方式，可以有效地降低地震時單樁的橫向地震響應。
  3. Meanwhile, based on the magnetic material theory, a complete analysis and summary are carried out on the three crystal structure and technology theory ; especially the ingredient analysis is made on the microscopical morphology and x - ray diffraction and its mixtures existence and relevant metallurgy about the typical second resource such as coldrolling iron and oxide red, steelmaking sludge and feso4 based on the practeal investigation of the pre - burning materials in domestic products plant, especially the analysis on the domestic markets and components, and connecting with reality and material characters in panzhihua iron and steel ( group ) cmpany, we established the product orientation and developing direction in panzhihua iron and steel ( group ) company ; after carrying out the technology reform on the old no. 1 magnetic product plant of enterprise company, making a detailed study on the various conditions for establishing a plant, the feasible research report is formed of 1400 tons ( per year ) feo preburning material and 3000 tons ( per year ) middle and high quality magnetic products ; so a necessary and reliable supports are provided both theoretically and practically for the development of the magnetic industry in panzhihua iron and s teel ( group ) cmpany

    同時，對磁性材料的理論基礎，尖晶石、磁鉛石、石榴石三大晶系結構以及其工工藝理論進行了較為全面的歸納、分析和總結；尤其針對攀鋼產生的二次資源如冷軋鐵紅、煉鋼污泥、硫酸亞鐵等三種典型原料分別作了成分分析、微觀物理形態以及x光衍射分析、其夾雜物的存在形式及相應的金相分析。對國內鐵氧體磁性材料的預燒料及磁件生產廠家的工藝、設備、技術、成本、質量狀況進行了實地的調研，特別是對國內磁性材料的市場及競爭對手進行了詳盡的分析，在此基礎上，結合攀鋼實際及原料特點確立了攀鋼發展磁材產業的產品定位及發展方向；對企業公司原有磁件一廠進行了技術工藝改造，對建廠各項條件進行了詳細的分析，形成了了年產14000噸年鐵氧體預燒料以及3000噸年中高檔磁件產品的可行性研究報告，從理論上和實踐上為攀鋼磁性產業的發展提供了必要的可靠的依據。
  4. The primary causes of the regime shortage are the state monopoly and the state control over the education. the primary cause of the structure shortage is that the budgetary appropriations are not in favor of the compulsory education and the underdeveloped district. then this article puts forward some suggestion to alleviant these kinds of educational shortage : to raise the repay of human capital ; to initiate a system of public financial regulation ; to increase the government appropriation for education ; to relax the state control over education ; to improve the form of the financial transference expenditure, and so on

    總量性短缺的成因主要是我國人口多、經濟發展水平低，教育投資資本邊際效率遞減趨勢、教育投資預期收益相對偏低等；財政性短缺的主要成因是在國家加快推進工業化特別是優先發展重工業的戰略下，政府財政支出的重點必然傾向物質生產部門，而近二十年的財政制度創新都因利益格局的剛性只能作有限突破等；體制性短缺的成因主要是政府壟斷阻礙各類要素往教育領域的流入等；結構性短缺的成因主要是分級分權撥款體制無法保證教育投資的公平等。
  5. Its main contributions include the following several aspects : firstly, the dissertation constructs the mathematic model of short baseline orientation determination using two geostationary satellites and analyses the applicable conditions of carrier phase interferometry. orientation determination precision is analysed in depth through both the conventional linearized method and monte - carlo computer simulation method, and the mathematical simulation results show that the linearized method has the shortcoming of fairly low elevation error analysis precision in high latitude area so as not to be very appropriate there. by analyzing the definite factors influencing orientation precision, the dissertation develops the concept of orientation dilution of precision, which uncovers the internal cause of exotic error behavior of bi - satellite orientation, and has important guiding significance for practical engineering applications

    本文系統地研究了基於「北斗一號」衛星載波相位干涉測量原理實現地球靜止雙星定向的相關技術，主要研究成果包括以下幾方面:首先，建立了利用兩顆地球靜止軌道衛星進行短基線定向的數學模型，分析了載波相位干涉測量的適用條件;採用傳統的線性化解析法及蒙特卡洛隨機模擬法兩種途徑對雙星定向的精度進行了詳細分析，數學模擬結果表明在高緯度地區線性化解析法由於俯仰角誤差分析精度略有下降而不太適合;在分析定向精度確定性影響因素的基礎上，提出了雙星定向精度衰減因子odop的概念，揭示了雙星定向誤差特殊表現的內部機理，對實際工程應用具有重要的指導意義。
  6. The analysis of the large - scale synoptic situation shows that strong precipitation is closely related to the explosion of monsoon and the intensification of cross - equatorial flow which bring a lot of vapor and meet with cold masses at the eastern of northwest district on 8th, june causing extremely heavy rainfall ; that subtropical high - level jet at 200hpa, subtropical high at 500hpa and low - level jet at 850hpa are the weather backgrounds favorable to strong precipitation ; that the pattern of eastern highs and western lows and the establishment of a low - level jet and the coupling between upper - and low - level patterns that determine that the rain occurred in the east of the northwest china ( on average, this is the rainy season for the south of china, but not for the northwest china ) ; that water vapor comes from southerly and easterly flow which converge at the eastern of northwest district with convergence mainly in lower levels and pbl ; that the high value of the whole - level apparent heat source < q1 > is near the area of large rainfall in the direction of northeasterly - southwesterly agreeable to shear line very well and the condensation latent heat releasing is main heat source with vertical advection item playing key role in q1 and q2 ; that there is a vertical secondary circulation crossing low - lever jet whose ascending branch is at the area of large rainfall ; that the construction of convection instability and conditional symmetry instability results that there is not only deep thermal instability, but also moisture influx and triggering mechanism of thermal instability causing strong torrential rain

    作為對比，本文還對2002年6月24 - 25日發生在北京地區的強地形雨進行了分析，並討論陜南、北京地區兩地暴雨的異同點以及地形作用的共性和個性，為兩地暴雨預報提供有益的參考，得出了一些很有意義的結果： 1大尺度環流背景分析表明： （ 1 ） 「 02 . 6 」強降水與6月上旬越赤道氣流和季風爆發密切相關，攜帶大量水汽的偏南氣流與冷空氣於6月8日交匯在西北地區東部，導致了這次強降水的發生； （ 2 ） 200hpa的副熱帶西風急流、 500hpa副高以及850hpa的低空急流的配置非常有利於本文分析之陜西強降水的發展與維持。大尺度形勢分析表明，東高西低形勢場、低空急流的建立和高低空形勢的配置決定了這場降雨出現在西北地區東部。與暴雨區相聯系，存在一支橫越低空急流的經向垂直環流，暴雨區處于該垂直環流的上升支； （ 3 ）偏南和偏東氣流水汽通道在西北地區東部交匯，水汽的輻合積聚主要在對流層低層和行星邊界層內完成； （ 4 ）整層的視熱源< q _ 1 >高值區在暴雨區附近呈東北-西南向分佈，與切變線走向非常一致，降水產生的凝結潛熱釋放是強降水區大氣的主要熱源。
  7. This article based on the height of strategy, combine the mind of quick logistic and precise logistic, design the logistic model of small and medium - sized enterprise, with the view of system and guided by this model, this article analysis the component of enterprise ’ s logistic system, meanwhile, considered the characters of those component and the realistic of enterprise, reference certain method, optimized the enterprise ’ s logistic system. because there is phenomenon “ benefit is carried inside out ” exist in logistic system, so, when we optimizing the logistic system, we must consider the influence between both sides in benefit is carried inside out. treat wholly improved as standard, among them, the most important relation is stock and transportation

    本文從企業的戰略發展的角度，結合敏捷物流和精益物流思想的優點，設計出了中小企業物流模型，並以此為指導，以系統的觀點和整體優化為宗旨，通過規劃中小企業物流系統的組成部分，結合企業自身的實際和各組成部分的特點，對企業物流系統進行了優化設計;由於企業物流系統中存在著效益背反的現象，因此，本文以占企業物流成本比重較大的庫存和運輸兩大重要組成部分為重點，在綜合考慮背反雙方的相互影響下，通過庫存計劃管理的優化，設計出合適庫存水平和運輸量的優化模型，並採用逆向思維綜合設計了運輸方式和運輸路線模型;同時提出了企業要想切實地達到物流系統優化預期目標的三大對策。
  8. The author of this thesis has done a thorough research into shenzhen development bank ( sdb ), on the basis of a vast amount of first - hand information and data. the research is done on the basis of all - around cost management theory and conducted systematically over sdb cost management through longitudinal and transverse comparison, combining with qualitative and quantitative analysis

    本文通過對深發展深入細致的研究，在掌握大量的第一手資料和基礎數據的基礎上，以深發展成本管理為研究對象，依據全面成本管理理論，採取定性分析與定量分析相結合的方法，結合深發展的實際情況，通過縱向和橫向的對比分析，對深發展的成本管理進行了系統地研究。
  9. Based on the feature technology and object - oriented mechanism, we found the manufacture - oriented three levels ( namely part, feature and geometry ) model of mechanical part and the resource model ; secondly, we realize the concurrent design of mechanical part and process through decomposing cycle, and then we constitute the evaluation guidelines on the basis of evaluation strategy of levels, which carry out from two levels ( part and feature ) and four phases ( part rough evaluation, feature rough evaluation, feature detail evaluation and part general evaluation ) ; thirdly, we put forward some evaluation methods according the evaluation guidelines, which include the rule - based process evaluation method, rule - based and fuzzy evaluation - based method associated with resources, case - bas ed and feature - based cost estimation method ; at last, we give a manufacturing - oriented evaluation system of rotating mechanical part, which validate the evaluation guidelines and method of the dissertation useful and practical

    以特徵技術為基礎，面向對象的編程機制為手段，建立了面向製造的三層次（即零件層、特徵層、幾何層）零件模型；同時進行了面向製造的資源建模。第二，通過細化循環，採用分層遞階的評價策略，分兩層（零件層和特徵層）四個階段（零件初評價、特徵初評價、特徵詳細評價和零件總體評價）建立可製造性評價指標；第三，以評價指標為基礎，分別提出了基於規則的結構工藝性評價方法、基於規則和模糊綜合評判定性和定量相結合的加工可行性評價方法、以及基於實例和特徵的加工成本估算方法；最後，以solidworks為開發平臺， vb6為編程工具，初步構建了面向製造的回轉類零件可製造性評價系統，它們驗證了本文評價指標和評價方法的實用性和可行性。
  10. With reference to the development of the agency ' s project of the system of airborne photogrammetry digital products " checking before acceptance and information management, after the process and methods of quality control are studied, a method of realization of the quality control during the process of production is put forth, and then after the analysis of the entries of information database and main functions that should be contained in the sub - system of information management, the airborne photogrammetry digitalized information database is designed and set up, and the information management software with vb6. 0 being the front end developing tool and sql server 7. 0 being the database management tool is developed, and the application of the object oriented technique in the software is discussed

    在航測數字化生產領域，需要與生產相適應的質量檢查和資料信息管理系統。本文結合局科研項目「航測數字成果檢查驗收和資料信息管理系統」的研製，分析了質量控制的內容，提出了一種適用於生產的質量控制方法，研究了航測資料信息數據庫應包含的內容和資料信息管理子系統應具有的主要功能，設計並建立了航測資料信息數據庫，開發了以vb6 . 0為前端開發工具、以sqlserver7 . 0為數據庫管理平臺的資料信息管理系統，並論述了面向對象技術在子系統開發中的應用。
  11. If a document is viewed as a combination of basis topics, and every basis topic is represented by a related vector, then it can be categorized as belonging to the topic represented by its principal vector. thus, nmf can be used to organize document collections into partitioned structures or clusters directly derived from the nonnegative factors

    如果將一篇文檔看作是由許多文本主題組合而成，而文本主題與語義空間的特徵向量相對應的話，則我們可以直接根據nmf演算法所提取的特徵向量及相對于特徵向量各文檔的編碼向量將文本集劃分成不同的類。
  12. The theory of fdi holds that the developing host country can draw advanced technology and capital which its country lacks. utilizing international circulating resources can help our industry to stride across the bottleneck of the supply of the key element, to establish rapidly the industry which cannot be developed at the present, promote " the upgrading of the old industries of the host country, enhance the quality of the related industries " capital, transfer the comparatively inferior industry to the comparatively superior industry, to accelerate the u pgrading of the industrial structure. however, the effect of fdi on promoting the upgrading of the host country ' s industrial structure is decided by the height of the industrial development of the emigrating country, the industrial accepting ability of the host country and the industrial leading " ability formed by fdi ' s related effect

    外商直接投資理論認為通過引入外商直接投資，發展中東道國可以引入本國缺乏的先進技術和資本，利用國際流動資源幫助本國產業跨越原要素供給的瓶頸，迅速建立起現階段自身沒有能力發展的產業，推動東道國原產業的升級換代，提高東道國關聯產業存量資本和新形成資本的質量，使相對比較劣勢的產業向比較優勢的產業轉化，加速本國產業結構升級。但是外商直接投資促進東道國產業結構升級效應的高低則決定於產業轉移國的產業發展高度，東道國的產業接受能力和通過外商直接投資關聯效應形成產業帶動的能力。
  13. In theoretically flow - levitation method can prepare the nanoparticle of a series of different metal element and different size. through a course imitate for preparation of nanometal powders in inert gas by flow - levitation method, have established the mathematics model of the metal droplet surface evaporate to form suspension nanoparticles in inert gas, the calculation of this model shows as a result, the major factor of affect nanometer

    研究表明，自懸浮定向流法制備的納米金屬間化合物微粒其相組成與蒸發源母料的成分有一定的對應關系，適當條件下得到的產物顆粒中，主要組成相的cu 、 al原子比基本接近或盡量與蒸發源母料的cu 、 al原子比趨於一致，換言之，可以通過
  14. Through the study of the establishment of is09001 quality management system and implementation of is09004 in zhuzhou cemented carbide group ltd., we can get the following conclusion : by the development of is09001 quality management system, the companies can solve the problems they had met in the quality management ; quality management of the organizations can be improved ; a good base will be built for the continual improvement. by the implement of is09004 standard, the companies can study the efficiency, interested parties, quality cost, self - classification and systems compatibility, which result in continual performance improvement. the eight quality management principles should become a part of the company culture, which lead the organizations to the perfect management model

    本文通過對株洲硬質合金集團iso9001質量管理體系建立過程的控制方法和iso9004標準實施方法的分析，指出企業可以通過正確地實施iso9001質量管理體系標準，初步解決組織原來存在的質量管理問題，提高企業的質量管理水平，並建立一個較好的質量管理平臺，為質量管理體系的持續改進奠定良好的基礎；指出企業可以通過在iso9001質量管理體系的基礎上應用iso9004標準，開展效率、相關方、質量成本、自我評定和體系兼容工作，持續改進組織的整體績效；指出企業可以通過對八項質量管理原則的學習和應用，使之成為企業文化的一個組成部分，指導組織向卓越管理模式前進。
  15. This part emphasizes the synthesis of nanoarrays, aiming at controlling the size and distance of nanocrystallites using calixarene derivatives by altering the size, length and chemical structure of the organic molecules ; 2. this part emphasizes in situ synthesis strategy for fabrication of polymer network of zns based nanopowder, aiming at size controls, coating and preventing agglomeration following " one - pot " synthesis ; this method fits to low cost, large scale production ; 3. according to development in zno nanomaterials, we first report on the synthesis, characterization of amorphous zno, aiming at describing the principles and approaches of synthesis techniques, optical properties, spatial structure and doped effect ; the amorphous zno displays cage - like structure, showing a strong ultraviolet emission while the visible emission is nearly fully quenched, a potential uv - emission material ; 4

    本論文以量子結構自組裝為出發點，提出利用杯芳烴及其衍生物的化學受限反應實現尺寸可調半導體納米粒子自組裝；提出有機聚合網路原位組裝zns基納米熒光粉方法，把熒光粉的納米化、包敷、防團聚在「一鍋」反應中完成，適于低成本，批量生產；根據當前zno的研究情況，我們首次合成了非晶zno ，研究了它的光學性質，確定了它的結構，並對其摻雜進行了初步的研究，非晶zno表現出強的深紫外發光特性，而可見發射非常弱，是一種有巨大潛在應用價值的深紫外發光材料；利用非晶zno的亞穩特性，對晶化過程中非晶zno納米晶zno三維受限量子結構特性，界面特性進行了深入的研究；利用固相熱分解一般受擴散控制特性，實現了尺寸可控的zno三維量子結構的自組裝；利用非晶zno的高度分散性，容易均勻成膜特性，實現了非晶籽晶誘導低溫液相外延自組裝生長高取向zno晶體薄膜。
  16. Finally the author gives some advices about how to build the monetary union between rmb and currencies in eastern asian countries and corresponding policy on decision - making level. the author argues that participating monetary cooperation in eastern asia is a good way to establishing a more beneficial rmb exchange rate regime in order to prevent financial crises. however some difficulties exist in monetary cooperation in eastern asia, such as the imbalance of economic development in different countries, lack of core nation and weak political foundation for monetary cooperation

    第五章則從實證分析角度，探討了人民幣與東亞地區實行匯率目標區制度的平價匯率及相應的成本收益，並運用了大量的統計資料，對東亞地區貨幣匯率波動的相關性以及人民幣的「最優」貨幣合作對象進行實證探討，進而在此基礎上，對人民幣與周邊貨幣建立「貨幣同盟」的順序進行了探討，並就此向決策層提出了幾點具有一定操作性的政策建議。
  17. Standard lamp and diffusers are very important calibration elements, in chapter three, first uv and vuv radiometric standard for calibration are introduced. then the fabrication and characteristics of baso4 diffuser and alminium diffuser are researched, the baso4 diffuser ' s hemispheric reflectance and bi - directional reflectance distribution function were measured and compared with lambtian surface, and the deviation from that of lambtian surface is given. in the experiment, al diffuser ' s brdf is researched, obtain the change of spectral characteristic of al diffuser, compare al diffuser ' s brdf before and after coated with al + mgf2, and different al diffusers with different surface roughness

    鋁漫反射板作為一個漫反射光學元件安裝在太陽紫外光譜監視器的入射狹縫前，太陽紫外光譜監視器在軌測量時，太陽輻射入射到鋁漫反射板后進入入射狹縫，光譜輻照度的角度是變化的，本章測量了鋁漫反射的相對雙向反射分佈函數，研究了鍍膜（ al + mgf _ 2 ）前後光譜反射率的變化，漫反射的光譜特性及漫反射板表面粗糙度對相對雙向反射分佈函數的影響，使得測量數據反演成為可能。
  18. The significant inflows of cash into public equities from private hands signals that market valuations still remain attractive relative to the cost of debt capital

    大量的現金從私人投資者手中流向上市股票顯示出市場估值相對于貸款成本而言仍然具有很強的吸引力。
  19. The release of u - pvc environmentally friendly draining pipe gave rise to a profound technical innovation about pipe machines ; the successful development of zxsg new generation twin screw extruders pushed the development of the domestic plastic pipe manufacturing industry towards the direction of high efficiency and low cost ; the release of zxpc, zxxc, etc. fully - automatic hollow air blowers made an end of that the imported plastic machines had ever aggressively penetrated in the chinese markets for a time as well as strengthened our confidence in keeping pace with old - line countries such as german in plastic machinery industry and even in sharing oversea markets with the competitive edges of extra low energy consumption and higher performance - to - price ratio ; and zxyxc series extruders for special shapes due to high performances completely ruled the market of its kind

    九十年代，市場經濟在中國逐步形成，廣東塑膠企業如雨後春筍遍地冒起，公司亦籍此雄風進入飛躍發展時期：國內塑膠業u - pvc環保排水管的面世，引發了本公司對管材機型技術內涵的深層改造，新一代單雙管同擠管材擠出機型研發成功，推動國內塑膠管製造業向高效率低成本的經營邁進zxyxc系列異型材擠出機型的入市，盡領市場風騷。目前，新一代中低檔價位的振興塑膠管擠出生產線問世，已經通過調試並進行批量生產，專用展示廳展示，該產品不僅延續振興公司高技術含金量的一貫傳統，而且價格相當低廉，是國內塑膠管行業中佔主要數目的中小型塑料加工廠的首選機型。
  20. Finally, these departments ca n ' t establish the information system and logistic system which can quick respond to the customers relate to cost. quality deliverable our country economy system is changing, it is changing from socialism planning economy to market economy. it is very important for us to research the supply chain management, we can learn from the foreign country " s enterprise practice. our goal of use of scm is controlling inventory, improving supply quality and strengthening the competitive capability

    我國航空企業特別是材料采購在傳統計劃體制與運作模式下，多數是自成一個封閉系統，不重視對供應鏈的管理；製造商、供應商和經銷商缺乏長期合作的戰略夥伴關系，相互之間缺乏以信任和共同獲利為基礎的價值鏈，沒有形成滿足顧客在成本、質量、交貨時間等方面的要求而反映敏捷的物流和信息流。我國正在由計劃經濟體制向市場經濟體制轉變，研究國外近來發展迅速的供應鏈管理理論與方法並應用於gj航空公司的實際，對控制庫存、提高服務水平、增強市場競爭能力，有重要的現實意義。
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