無鍵機構 的英文怎麼說

中文拼音 [wújiànjīgòu]
無鍵機構 英文
keyless work
  • 無 : 無Ⅰ動詞（沒有） not have; there is not; be without Ⅱ名詞1 （沒有） nothing; nil 2 （姓氏） a surn...
  • 鍵 : 名詞1 [機械工程] （使軸與齒輪、皮帶輪等連接並固定在一起的零件） key 2 [書面語] （插門的金屬棍子）...
  • 機 : machineengine
  • 構 : Ⅰ動詞1 （構造; 組合） construct; form; compose 2 （結成） fabricate; make up 3 （建造; 架屋） bui...
  • 機構 : 1 [機械工程] （機械的內部構造或一個單元） mechanism 2 （機關; 團體） organ; organization; institu...
  1. Because of the unique issues in the networks, including mobility - induced disconnection, network partition, high out - of - order delivery ratios and channel errors, the congestion control and the error recovery in the network is challenging. in this environment, the interaction between tcp and mac layer protocols, the affection of route protocols on the performance of tcp and the particular congestion control and error recovery mechanism are first discussed. then a particular transport layer protocol scheme based on the non - feedback mechanism is presented, with emphasis on the analysis and simulation of the key parameter

    文中主要討論了兩種不同網路結構中的無線tcp協議改進方案，其一在最後一跳為無線鏈路的網路環境中，針對基本tcp擁塞控制機制存在的缺陷，文中在現有解決方案的基礎上提出一綜合性的方案，其中包括無線鏈路的高誤碼率和連接斷開問題的解決，並重點對方案中出現的交叉層問題進行分析和模擬；其二，考慮的是分散式網路（ adhoc ） ，在文中較為詳細的分析了tcp和mac層機制間的相互作用、路由協議中造成tcp性能降低的因素、 adhoc網路中應採取的特殊擁塞控制和差錯恢復機制，在此基礎上提出了一種採用非反饋機制的解決方案，重點對方案中的關鍵參數進行分析和模擬，分析和模擬結果表明此機制可在很大程度上提高adhoc網路中tcp的性能。
  2. Low failure rate : its structure is simple and reasonable with key parts adopting fittings with international first - rate quality, contributing to no failure of the whole machine and much longer working hours

    故障率低：結構簡單合理，關鍵部分採用國際一流品質配套，整機無故障，工作時間大大提高。
  3. Organic - inorganic assembly layered perovskite - type materials integrate useful organic and inorganic characteristics on a molecular level. the inorganic component forms an extended framwork bound by strong covalent or ionic interactions, and the organic component is filled in which and thus the organic layer and inorganic layer are alternately stacked. the materials have unique properties such as electronic, optic and magnetic properties, and there has been great interest in studying them recently

    層狀類鈣鈦礦有機-無機分子組裝材料在分子水平上結合了有機組分和無機組分的有益特性，無機組分通過強的共價鍵或離子鍵形成擴展的骨架，並將有機組分填入框架中形成有機層與無機層交替的結構，具有某些電學、光學、磁學特性，引起人們的研究興趣。
  4. Especially, the idea of " datum dimension precision back " is being put forward, and this idea is being realized by backing composition composed by outer - diameter micrometer, airproof shafting, microwatch. at the same time, use " non - lock " to replace " lock ", this way make the system compact, eliminate many bigger error and resolve th

    尤其是提出了基準尺調整后精確後退的思想，並通過外徑百分尺、密珠軸系、千分表組成後退機構加以實現。同時以「無鎖」代「鎖」 ，使系統結構緊湊，受力小，消除了多項較大誤差從而解決了測試精度低的關鍵問題。
  5. According to the trend, this paper introduces the technology of database and pc ' s serial port communication, which is adopted as the technology premise of wireless surveillance control system. and it illustrates the key technologies of how to realize the wireless surveillance control system. by making full use of its possible expansibility, flexibility and pervasive applicability, as well as the serial port communication technology, scada could help to transmit batch of data effectively, extend the ascii code serial port communication processing in the mscomm components and transmit the large - scale data stream

    針對這一趨勢，論文在介紹了作為無線監控軟體系統的技術前提的數據庫技術和微型計算機串列口通信技術的基礎上闡述了實現無線監控軟體系統的各項關鍵技術，對利用數據庫系統對數據結構間的關系的嚴格定義和約束實現系統的可擴展性、靈活性與普遍應用性、利用計算機串列口通信技術實現批量數據傳輸、實現了數據的有效傳遞、 mscomm控制項中擴展ascii碼的串口通信處理和大型數據流的傳輸等項技術作了詳盡地說明，並對已完成的系統作出了評價，提出可以進一步改進的意見。
  6. This paper has a further study on the key technology called validity maintenance mechanism in semantic feature modeling in order to maintain the intent of designers and satisfy them. the method combines geometry model and semantic feature modeling, setting up new feature representation 、 cell element naming and identification method. in the meantime, a history - independence interactive feature boundary re - evaluation algorithm is presented based on feature editing. moreover, the validity recovery mechanism after invalid feature operation can maintain the original feature model. the above ideas have been realized on hust - caid ( computer aided industry design system developed by harbin university of science and technology ) preliminarily

    為了能夠正確地維護設計者的設計意圖和滿足用戶的需求，本文在原有造型的基礎上對語義特徵造型中的關鍵技術即有效性維護機制進行深入的研究，將幾何模型，語義特徵模型結合起來統一進行研究，建立了語義特徵造型在產品模型設計過程中特徵表示方法的新理論、細胞元素命名方法和辨別機制，同時對系統原有特徵編輯過程進行了研究，提出了獨立於歷程樹的特徵邊界重構演算法以及模型操作無效時的有效性恢復方法。
  7. Nowadays, 99 % web site organize their information to web paper by html which is a semi structure format, and provides no semantic, and data organized by it can not be understand by computer, so computer can not analyze those data - in order to help people to find the information they want, some filter systems based on keywords appears. and those systems have became a indispensable part of the filter techniche. on the base of researching those systems, we provide a arithmetic based on qa

    現在， 99的web站點的格式都是採用html這種半結構化的數據格式來表示，而html標記語言缺乏對語義的支持，無法讓計算機理解信息所蘊涵的語義，從而也無法從這些數據中分析出隱含的信息。為了幫助用戶從基於html的文檔中查找有用信息，出現了很多基於關鍵詞的過濾系統，另一方面，形成了面向網際網路的過濾技術中不可或缺的一部分。
  8. The key to realize the organized integration of various data sources is how to specify all kinds of data by a unique data schema and mask the heterogeneity of their platforms and data structure, etc. there are some shortage in existing data integration systems : complex conversion of any data schema to the common schema ; little integration about semistructured data ; lackness of interoperability in bottom level communication mechanism based on software component

    實現數據無縫集成的關鍵和困難是如何以一種統一的數據模式描述各數據源中的數據，屏蔽它們的平臺、數據結構等異構性。已有的數據集成技術，存在一些不足：公共模式同各數據源模式的轉換工作繁雜；對結構化數據的支持較好，而半結構化數據不夠重視，數據源參與集成的程度不高；基於軟體組件的底層通信機制缺乏互操作性。
  9. The background of rapidly developed uhsm ( ultra high speed machining ) technology is introduced and the key function of the uhs ( ultra high speed ) motorized spindle to uhsm is discussed in the thesis. after analyzing international technology status and trend of the uhs motorized spindle study, we research the core technologies related to the uhs motorized spindle in detail, such as optimized design of the motorized spindle structure, high speed bearing technologies, oil - gas lubication technologies, precision machining and assembly technologies, design and manufacture technologies of the built - in frameless motor etc. then the digital simulation of the motorized spindle sensor - less vector control system is studied thoroughly

    本文從超高速加工技術飛速發展的背景出發，討論了超高速電主軸對超高速加工技術發展的重要作用和意義；分析了超高速電主軸研究的國內外現狀及發展趨勢；詳細論述了超高速電主軸的關鍵技術，包括電主軸結構優化設計、高速軸承技術、油氣潤滑技術、精密加工與精密裝配技術以及內裝式電機設計製造技術等，並深入研究了超高速電主軸無速度傳感器矢量控制系統的數字模擬技術。
  10. It is rather difficult to quantitatively analyze some factors, such as the credit of an enterprise, the management of organization, etc., what ' s more, due to the influence of many artificial factors, the critical work of present pre - examination about qualification and the tenders, assessment has not been strictly executed according to the procedure of the invitation of bids and tenders, and there is no quantitative standards for such assessment, much qualitative analyses, little quantitative analysis, much artificial interference factors, caused it difficult to eliminate the " favor scores ", with great random, so it is not easy to carry out

    投資者（業主）如何在眾多的競爭者（投標者）中，運用科學的管理手段擇優選出符合要求的投標者，是迫切需要解決的問題。有些因素，如企業信譽、機構管理等較難定量分析。加上許多人為因素的影響，使得現行施工招投標的關鍵環節? ?資格預審和評標中，不嚴格按招投標程序辦事，評審無量化標準。
  11. We think that the basic reason of the low efficiency in chinese stock market do not consist in the ownership of structure. the key of the state - owned listed company problem does not consist in having or not state - owned or intensive degree of state - owned ownership, but consist in to have a right fixed position. to resolve this problem, the solution should be from the source head, realizing as soon as possible the market turn mechanisms, and realizing all of the stock share circulating

    研究發現，股權結構與公司經理層持股比例並不影響公司績效，從而得出結論：中國股市低效率的根本原因不在於股權結構，國有上市公司問題的關鍵不在於有無國有股或國有股的高低，而在於給國有股一個正確的定位，解決所有者缺位的病癥，其解決之道應從源頭入手，盡快實現市場化的運行機制，最終實現所有股票全流通。
  12. Chapter 2 introduces the key technology for all - digital receivers. chapter 3 gives a synchronization scheme for burst mode qpsk based on dpll using a certain preamble first, then a short - wave burst - mode 8psk all - digital blind receiver is proposed., all of the scheme is demonstrated in detail.,

    全文結構安排如下：第一章為序論部分，介紹了當前短波通信中的新技術和新體制以及軟體無線電臺的概念、發展趨勢和相關應用；第二章介紹全數字接收機中的關鍵技術。
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