key intermediate 中文意思是什麼

key intermediate 解釋
關鍵中間體
  • key : n 1 鑰匙。2 要害，關口，要沖。3 關鍵，線索，秘訣；解法。4 （外國書的）直譯本，圖例，題解，圖解，...
  • intermediate : adj 中間的，居間的。 The intermediate class （船的）特別三等。 An intermediate compound 中間化合...
  1. Abstract : 1 - ( 4 - pyridinyl ) - 2 - propanone, which is the key intermediate of synthesizing the milrinone, a cardiotonic agent, was synthesized from 4 - methyl - pyridine by acetylation in dichloromethane and phase transition catalyzing hydrolysis. the overall yield was 73. 1 %

    文摘:報道了以4 -甲基吡啶為原料，經酰化和相轉移催化水解反應制備強心藥物米利酮關鍵中間體1 - （ 4 -吡啶基） - 2 -丙酮的新合成方法，總收率達73 . 1 %
  2. This paper introduces the latest progress of high level radioactive waste disposal programs in the world, and discusses the key scientific issues as follows ： ( 1 ) the precise prediction of the evolution of a repository site ; ( 2 ) the characteristics of deep geological environment ; ( 3 ) the behaviour of deep rock mass, groundwater and engineering material under coupled conditions ( intermediate to high temperatures, geostress, hydraulic, chemical, biological and radiation process, etc ) ; ( 4 ) the geochemical behaviour of transuranic radionuclides with low concentration and its movement with groundwater : and ( 5 ) the safety assessment of disposal system

    在介紹國內外最新研究進展的基礎上，重點討論高放廢物地質處置的若干關鍵科學問題：處置庫場址地質演化的精確預測、深部地質環境特徵、多場耦合條件下（中（高）溫、地殼應力、水力作用、化學作用、生物作用和輻射作用等）深部巖體、地下水和工程材料的行為、低濃度超鈾放射性核素的地球化學行為與隨地下水遷移行為及處置系統的安全評價。
  3. The purpose of this thesis is to work deeply over the sr theory, understand the key thinking of sr, cognize the key technologies of sr, and design the if ( intermediate frequency ) sr receiver subsystem basing on the sr theory

    本文的研究目的是深刻研究軟體無線電基礎理論，領會軟體無線電關鍵思想，認識軟體無線電中的關鍵技術，掌握軟體無線電的發展現狀和應用前景，設計基於軟體無線電思想的中頻軟體無線電接收機子系統。
  4. With the support of intermediate services, the specialized platform of service has been built ; relying on " seed fund ", the platform of fund for adventure some investment has been established ; depending on the special fund of the torch center national ministry of science and technology for state high - tech career service center of ningxia, the honeycomblike informational network of the incubator of technological and small middle sized enterprises, the informational application network of the tracking of the incubating enterprise ' s growth, specialized public developing network ( molecular biology lab, key labs of natural gas transformation ) have been shaped to improve the system of incubation

    依託高校、科研院所的智力資源，建立「智力信息平臺」 ；依託中介服務機構，搭建專業服務平臺；依託「種子資金」為風險投資，搭建資金平臺；藉助國家科技部火炬中心對寧夏國家高新技術創業服務中心專項資金，建立科技型中小企業孵化器蜂窩信息化網路、在孵企業成長跟蹤信息化應用網路、專業型公共開發網路（分子生物學專業實驗室、天然氣轉化重點實驗室） ，完善孵育體系，重點推進幾類孵化器建設。
  5. In them, the productivity system is the key level, the economic relation system is the intermediate level and the market competition is the peripheral environment

    其中，生產力系統是核心層次，經濟關繫系統是中間層次，市場競爭是外圍環境層次。
  6. The fourth part analyzed the intermediate dc voltage and its control principle and the technical parameter of the main parts in the ac transmission system. several key technical problems such as parallel working of the ac motors, the wheel diameter difference under the bogie - control mode, the ac motor - inverter matching principle are studied in detail. the principles to determine the electrical parameters are also discussed

    論文第4章重點研究了變流器的中間直流電壓的確定及其控制規律，確定了交流電傳動系統主要部件的技術參數；研究了架控方式工作下電動機並聯工作、輪徑差、電機?變流器匹配原則等關鍵的技術問題；詳細分析了交流傳動系統在牽引工況和電阻制動工況下各參數的工作過程和控制原則。
  7. Chemical company located in the garden city of hubei avenue traffic developed, hubei is one of the key enterprises, the main production of medicines, pesticides intermediate, the main product b chloride, chlorine b chloride, phenol de mdma, 2, 3 - amounts jiben formaldehyde, 2, 3 - two chlorobenzene formaldehyde, 3, 5 - two regards formaldehyde, the benyi methadone, the benyisuan

    仙桃市金聯化工有限公司位於交通發達的湖北仙桃，是湖北省重點企業之一，主要生產各種醫藥、農藥中間體，主要產品乙酰氯、氯乙酰氯、對芐氧基苯酚、 2 ， 3 -二甲基苯甲醛、 2 ， 3 -二氯苯甲醛、 3 ， 5 -二羥基苯甲醛、聯苯乙酮、聯苯乙酸。
  8. The spallation neutron source induced by intermediate energy proton - nucleus interaction is a key point and has not solved yet for the transmutation and applications

    散裂中子源是這個系統的一個重要部分，也是一個急需解決的重點。
  9. The intermediate organisations pay the key roles in such kind of production. the organisations holding certain technologies, attitude to serve farmers and proper mechanism to allocate the benefits among producers, processors, sellers and themselves, the big specialized households and the farmer agents have played important roles and the order - based productions with such kinds of actors and arrangement have higher rate of success

    在訂單農業中龍頭企業是強者，是利益的最大受益者，一般都持積極肯定的態度；中介組織在發展訂單農業中起關鍵作用，具備一定的技術含量、有為農服務意識、有合理的利益分配機制的中介組織以及種養大戶本身、經紀人的作用明顯，成功率高。
  10. Results and conclusion the proportion of the ingredients and the method of the postprocessing had been improved in the process of synthesis of the key intermediate - sulfobenzyl cephalosporin, with the increased yield from 30 % to 42 %

    結果與結論通過改進關鍵中間體7 - （ -磺苯乙酰胺）頭孢菌素酸鈉合成的投料比與后處理方法，使該步反應產率由30 %提高到42 % 。
  11. " it is no doubt a growing trend that as faster and more efficient ultra long haul aircraft become available, more and more key routes in the world which are presently served with intermediate stops would eventually be replaced by non - stop services, " he said

    他說：無可否認，有趨勢顯示隨著更多速度較快和更有效率的超長途航機面世，越來越多目前需要中途停站的主要國際航線日後最終會被不停站服務取代。
  12. Intermediate - low temperature solid oxide fuel cell ( iltsofc ) is the tendency of the solid oxide fuel cell ( sofc ) commercializing development, and one key problem is the study of cathode materials

    摘要中低溫固體氧化物燃料電池的研製是固體氧化物燃料電池商業化的必然趨勢，陰極材料的研製是影響其發展的關鍵問題之一。
  13. It is recommended that intermediate flow classes form a key part of your regular yoga practice

    建議學員以這課程作為常規瑜珈練習的主線。
  14. I overwrote it with the first key, then i looped through the intermediate keys to insert more sub - levels note that we leave the last sub - level for last. finally, when there are just two items left in the

    使用第一個鍵可以覆蓋它，然後循環通過中間鍵，以插入更多的子層（注意，我們將最後的子層留到最終） 。
  15. Data warehouse is a hot research area in 90s its main motif is to provide the decision - maker a powerful tool : gathering the data in pure consistent, relevant pattern, and making use of the data in managing analyzing, data - mining purposec that means that the decision - maker can use the tool to understand, grasp the situation of the business from different directions and forecast the future of it when using data warehouse, the processing speed determines data warehouse ' s practicability and processing ability the hoc ( highway decision center ) system realized before solves some key problems about intermediate scale data, mainly concentrating data warehouse performance coefficient when using hdc in large scale data, it encountered processing speed problem then the settlement of this problem becomes a major research point so, based on the former research achievements, the present task is to construct the renowned data warehouse architecture and its relevant algorithms, then adapts the system to the large scale dataset with data mining functions c this paper is a part of the research in order to construct the powerful system, a key problem is to cope with the processing - speed problem and the data space problem, etc, - caused by the large scale dataset and magnificent dataset this is also the core in the present data mining research this paper ' s motive is to design and realize a decision - tree classifier in the data warehouse system for large - scale dataset

    大型數據倉庫的處理速度問題目前是制約其推廣應用的關鍵所在，也是這一領域的一個重要研究課題，也正是我們當前工作的重點：在前期研究工作的基礎上圍繞提高大型數據倉庫處理速度問題，建立改進的數據倉庫系統模型和相關演算法，開發出面向中級以上企事業單位的、具有數據挖掘和分析能力的大型數據倉庫系統。建立大型數據倉庫所面臨的關鍵問題，是如何妥善解決實際業務數據的大規模、海量特徵所帶來的處理速度和空間等問題，這也是當前挖掘技術研究必然面對的核心問題。本研究的目的是設計並實現大型數據倉庫系統中的分類數據挖掘工具? ?決策樹分類器，主要工作是在綜合了解現有決策樹分類演算法的研究情況的前提下，對決策樹演算法適應大規模數據集的問題進行探討，力求設計出能較好地適應大規模數據的分類器演算法。
  16. The thesis that did the research focusing on the realization of real - time de - hopping processing, introduces the hardware and software models of the de - hopping and digital intermediate frequency receiver and describes the key part of the design

    本文將對跳頻信號的實時解跳處理進行研究，著重對跳頻解跳與數字中頻接收機的實現上進行論述，並介紹該接收機的軟硬體模型，對實現方案的重要環節進行闡述。
  17. This paper discusses key technology in the digital intermediate frequency receiver with wide band based on software radio, including down - converter on condition of band - pass - sampling, digital down - converter, multi - rate digital signal processing, band - pass signal decimating, and achieves software system simulation based on under - sampling

    摘要分析了基於軟體無線電的寬帶數字中頻接收機中的關鍵技術帶通采樣下變頻技術、數字下變頻技術、多速率處理技術，並實現了欠采樣技術條件的軟體系統模擬。
  18. First, the thesis summarizes the history and theories of performance appraisal, discusses its function in the hrm, points out the intermediate manager ' s key role in corporation and the necessity to appraise their performance. second, under the esp method, we expound concept system, indicator system, measure system and auxiliary system, which consisted in performance appraisal. a complete performance appraisal system has been established

    首先，本文闡述了績效考核及其在人力資源管理中的作用，指出中層管理人員企業中的重要地位，對中層管理人員進行績效考核的現實意義；接下來運用esp方法，將績效考核系統分為概念體系、指標體系、方法體系和配套體系四方面進行詳細論述，建立起完整的績效考核體系。
  19. Firstly, this paper introduces the basic theory and the key technology of digital intermediate frequency system, secondly the method of the sampling rate conversion, multirate signal, and which is the important, essential theory in digital intermediate frequency system, is studied carefully. then it analyses the components of the flow chat. finally we simulated the designed system on spw and the properties of the system is make out

    文章首先闡述了數字中頻系統的基本思想、關鍵技術和發展概況，然後研究了數字中頻系統涉及的數字信號處理理論，主要內容包括欠采樣技術、多速率信號處理、正交變換理論與高效數字濾波技術，然後詳細分析了數字中頻系統的設計，並在spw模擬平臺上加以實現，最後根據模擬結果分析了數字中頻系統的性能。
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