維修次數 的英文怎麼說

中文拼音 [wéixiūcìshǔ]
維修次數 英文
frequency of maintenance
  • 維 : Ⅰ動詞1 （連接） tie up; hold together; link 2 （保持; 保全） maintain; safeguard; preserve; keep ...
  • 修 : Ⅰ動詞1 （修飾） embellish; decorate 2 （修理; 整治） repair; mend; overhaul 3 （寫; 編寫） write;...
  • 次 : Ⅰ名詞1 （次序; 等第） order; sequence 2 [書面語] （出外遠行時停留的處所） stopping place on a jou...
  • 數 : 數副詞（屢次） frequently; repeatedly
  • 維修 : keep in （good） repair; service; maintain
  • 次數 : number of times; frequency
  1. In the light of the problems of the air balance system of model lcj1250 chain drive pumping unit, it is proposed to change the air balance with counterweight balance, and three criteria for the modification is put forward : ( 1 ) ensuring the reliability of the unit with smooth operation, low noise and long life ; ( 2 ) cutting down the production cost and using less component parts as possible ; ( 3 ) carrying out modification without such main technical parameters as stroke, pumping speed and maximum polished rod load

    針對lcj1250氣平衡式鏈條抽油機存在氣平衡故障率高和現場維修困難等問題，提出將氣平衡改造成工作可靠的重力平衡的方案，並確定了改造的三個原則：一是保證整機的可靠性，使抽油機運轉平穩，振動噪音小，壽命長；二是力求降低生產成本，減少零部件製造，盡可能選用原來的通用件，捨去平衡缸和空氣包等氣平衡附件，在原往返架主體上懸掛一個配重箱；三是力求不改變沖程、沖次及最大懸點載荷等主要技術參數。
  2. Abstract : in the light of the problems of the air balance system of model lcj1250 chain drive pumping unit, it is proposed to change the air balance with counterweight balance, and three criteria for the modification is put forward : ( 1 ) ensuring the reliability of the unit with smooth operation, low noise and long life ; ( 2 ) cutting down the production cost and using less component parts as possible ; ( 3 ) carrying out modification without such main technical parameters as stroke, pumping speed and maximum polished rod load

    文摘:針對lcj1250氣平衡式鏈條抽油機存在氣平衡故障率高和現場維修困難等問題，提出將氣平衡改造成工作可靠的重力平衡的方案，並確定了改造的三個原則：一是保證整機的可靠性，使抽油機運轉平穩，振動噪音小，壽命長；二是力求降低生產成本，減少零部件製造，盡可能選用原來的通用件，捨去平衡缸和空氣包等氣平衡附件，在原往返架主體上懸掛一個配重箱；三是力求不改變沖程、沖次及最大懸點載荷等主要技術參數。
  3. The second chapter studies the economy of ship ' s power plants, based on the aspects of lowering fuel cost, waste heat recovery, the match of ship, machinery and propeller, increasing propulsion efficiency, increasing the economy of ship ' s power plants, etc. the third chapter discusses in detail the control measures of voyage change cost, analysizes systematically the voyage change cost based on the way of fuel cost, harbor cost, voyage venture cost. the fourth chapter studies the structures and control measures of seafarers cost, maintenance cost, spare parts and stores cost, lubricating oil cost, etc. which are relatively easy to be controlled ; based on the state maintenance decision - making, a mathematical model is put forward, the validity and its solve process are discussed. the control measures of spare parts, fuel cost and lubricating oil cost should be based on scientific budget, through the control means of application, reception, usage, store check, try to acquire the inosculation of theory

    第一章主要討論營運船舶運輸成本，對船舶運輸成本的概念、結構、性質與分攤、成本細分進行了分析，從宏觀上闡明了船舶運輸成本的生存環境和生長趨勢；第二章研究了船舶動力裝置的經濟性，在營運船舶降低油耗、廢熱利用、船機槳匹配、提高推進效率、提高船舶動力裝置經濟性的有效途徑等方面進行了闡述和論證；第三章詳細論述並論證了航次變動成本的控制措施，全面系統地分析和總結了航次變動成本，通過對燃油成本、港口使費、航次風險成本的分析與控制，提出了航次風險成本的概念並論述了若干航次風險成本的控制措施；第四章對船舶營運成本中的船員費用控制、維修保養及其費用控制、船舶備件物料管理及其費用控制等幾個主要可控性較高的成本進行了細致的分析並分別討論了相互的控制措施，提出了基於狀態維修決策的馬爾可夫數學模型並論證了模型的正確性及具體解算步驟，對于備件、燃潤物料的控制堅持以科學的預算為前提，以申領、接收、使用、盤存為控制環節，切實做到理論與實踐的密切結合；第五章，結合營運成本的預核算的案例，對船舶營運成本的預算及核算進行了有益的探討，旨在揭示成本發生的動因，並給出了成本預算、核算的編制方法。
  4. The expert system has adopted the client / server network mode, and introduced powerbuilder 7. 0 and sybase as the development method and database, and improved the design of database and knowledge warehouse, which made the expert system function better, for instance, to analyze the state and fault diagnose on the base of the latest data, to perfect the knowledge in the expert systems, to manage and maintain the ups, to inquire and to analyze through the characteristic data

    該文提出的基於知識的ups故障診斷專家系統具備了較好的功能。 ?可根據最新一次的數據進行ups的狀態分析和故障診斷； ?可根據專家經驗對專家系統知識庫中的各類知識進行動態修改； ?具有ups用戶或用戶組管理、維護的功能； ?可進行各類ups部分特徵量處理信息的查詢； ?可對ups部分特徵量進行歷史分析。
  5. In addition, a shadowing function applicable to multiple scattering is taken into account, which extends the calculation to the surface with anisotropic slope distribution

    引入考慮多次散射的遮蔽函數來修正掠入射情況下的散射系數，並將計算范圍擴展到均方根料率各向異性的二維粗糙面。
  6. The results show that setting matrix and geometrical transformation as a selected topic at senior high schools is not only necessary but also feasible. this topic meets the characteristics of students in senior high schools, and can satisfy their development. the results also show that matrix and geometrical transformation can broaden span of view, boost up study interesting, promote development of capability, enhance self - confidence, and build up the ideal and skills of using mathematics finally, several suggestions about the compiling work of new teaching materials and teaching work in practice under new standard were given

    其次，本研究進行了「矩陣與幾何變換」這一選修專題的試驗班教學，對所做教學設計的科學性、所編寫教學材料的有效性與適應性進行了實踐檢驗，結果表明，在高中數學課程中開設矩陣與幾何變換這一選修專題不僅必要而且可行；矩陣與幾何變換這一選修專題的知識既符合學生全面發展的需要，又符合學生的學習特點；發現矩陣與幾何變換對學生全面發展所具有的促進作用主要有：能開闊學生視野，增強學習興趣，增加數學學習的信心，促進學生辯證思維能力的發展，有利於培養學生自覺應用數學的意識與能力等。
  7. Under this arrangement, efficient maintenance and conservation of the capacities of these watercourses can be effected to reduce the probability and severity of flooding

    在這安排下，維修水道的效率便可提高，排水道的排洪能力也得以維持，這絕對有助於減低水浸的次數及嚴重程度。
  8. The thesis consist of six chapters and based on the way of propose the question, analysis, then get the solution. it discussed and recognized what the ship transportation cost was in chapter one ; studied the environment and growing trend of the cost in chapter two ; fully discussed and demonstrated the voyage variable costs and controlling method, proposed a mathematic decision model of fuel supplying and get through the validation, proposed the concept of risking cost and addressing many controlling measures to it in chapter three ; discussed a certain running costs, proposed and validated a mathematic model of condition - based maintenance, and put forward many practical controlling method of running costs such as crew payment, repairs, spare parts, stores and lub oils in chapter four ; combining a case of monthly running cost budget and verification, performed a useful learning on running cost budget, forecast and verification in chapter five ; finally fully studied the method of cost - calculating and benefit - analyzing of time chartering container ships on a proposed route

    第一章主要討論並認清什麼是船舶運輸成本；第二章研究了船舶運輸成本的生存環境和生長趨勢；第三章詳細論述並論證了航次變動成本的控制措施，提出了燃油補給方案的決策模型並給出了模型的驗證過程，提出了航次風險成本的概念並論述了若干航次風險成本的控制措施；第四章對船舶營運成本中的船員費用、維修保養費用、備件、潤物料費用等幾個主要的可控性較高的成本進行了細致的分析並分別討論了相應的控制措施，提出了基於狀態維修決策的數學模型並論證了模型的正確性及具體解算步驟，對于備件、潤物料的控制堅持以科學的預算為前提，以申領、接收、使用、盤存為控制環節，切實做到理論與實踐的密切結合；第五章結合營運成本的預核算的案例，對船舶運輸營運成本的預算及核算進行了有益的探討；第六章結合具體案例對期租班輪的成本測算與效益分析方法進行了細致的研究。
  9. The new algorithm starts from an initial estimate which is based on the hough transform, and a rectangular window is centered using the current line approximation, and a new line estimation is generated by making a total least squares fit through the pixels contained within the window. this is repeated until convergence is reached. lastly, we have suggested a new technique which may recover the motion and structure parameters of a moving object by using of 21 optical flow lines based on the optical flow fields of the feature line this thesis is the project supported by aeronautical foundation science ( no. 99f53065 ) and research center of measuring and testing technologies, and control engineering in nanchang institute of aeronautical technology ( no. 2001 - 15 )

    演算法的思路是：首先，在小區域內運用霍夫變換確定直線的初始值；其次，以直線的初始值所對應的直線為中心線，建立一個矩形框；最後，利用矩形框內所包含的邊緣點數據不斷地迭代直至收斂，從而達到進一步修正直線的坐標參數；本文基於特徵直線的光流場，即線流場，建立了一種利用21條光流線確定空間三維物體旋轉運動參數、平移運動參數以及對應的空間直線坐標的線性演算法。
  10. The belt drive provides a direct, smooth feel and virtually no drag while offering ease of maintenance by eliminating dedicated length cables

    採用皮帶式驅動器，操作順滑安靜而穩定，比傳統式的纜繩耐用，節省維護次數和維修成本。
  11. Reconstruction and improvement to this section of the road is needed to upgrade it to the current expressway standard as far as practicable to minimise repair works and traffic disruption and to curb the rising maintenance costs

    政府建議重建及改善該路段以盡量達致現今快速公路標準，此舉有助減少維修次數以及相關的交通阻塞問題，並可減低不斷上升的維修費用。
  12. On the basis of collecting and processing many datum and materials. firstly. this paper analyzes main activities and cost constitutions of each stage of the life cycle of a fcs, and lay a foundation for later analysis and evaluation of system lcc. secondly, a basis method and usage range for estimating the system lcc are introduced. a multivariate linear regression model of pcs development cost and cost driven factor is built by use of the parametric method and supplies the base of cost estimation of newly - developed systems. thirdly, combine actual examples and make statistical analysis of lcc of a certain pcs developed by our institute, predict unhappened usage and service cost with grey prediction method, obtain proportion of each constitute to the lcc. forthly, according to actual conditions, use the fuzzy theory to overall evaluate efficacy of the fcs, fifthly, combimng our actual conditions, investigate specific measures of how to implement the life cycle cost management in our institute and put forward a new conception of developing web - based flight control system lcc management information system with pdm as the platform. at last, investigate important factors such as reliability and maintainability that may affect the life cycle cost of the fcs in detail, and put forward specific methods of lowering the life cycle cost of the fcs

    論文在收集和整理大量資料的基礎上，首先深入分析了飛控系統壽命周期各階段的主要活動以及各階段的費用構成，為以後系統壽命周期費用的分析和評價奠定了基礎；其次，介紹了壽命周期費用估算的基本方法和使用范圍，並利用參數法建立了飛控系統研製費用與費用驅動因子的多元線性回歸模型，為新研系統的費用估算提供了依據；第三，結合實例對我所研製的某型飛控系統的壽命周期費用進行統計分析，運用灰色預測方法對未發生的使用及維修費用進行預測，得出了該系統的壽命周期費用以及各組成部分所佔比例；第四，根據實際情況，首次運用模糊理論對飛控系統的系統效能進行了綜合評價，構造了飛控系統系統效能模糊綜合評價模型；第五，結合我所實際，探討了如何在本單位實施加強壽命周期費用管理的具體措施，提出以pdm為平臺，開發基於web的飛控系統lcc管理信息系統的新構思；最後，對影響飛控系統壽命周期費用的重要因素如可靠性和維修性等進行了詳細地研究，提出了降低飛控系統壽命周期費用的具體方法。
  13. Some new ideas are proposed in this thesis based on svm and ica : firstly, a modified svm method based on posteriori probability theory is given, which makes the classification super plane corrected from the original one. a better classification result is obtained without finding the best quadric optimization algorithm and large scale training datasets are reduced to small scale training datasets at the same time. secondly, ica is applied to the preprocessing period of the recognition character images for purpose of feature extraction and dimension reduction

    本文在系統研究svm和ica的基礎上提出了以下新的觀點：其一是採用了引入后驗概率的修正svm方法，它在原分類超平面的基礎上不斷修正分類超平面，提高分類正確率，從而避免了尋找最優二次規劃的麻煩，同時將大規模訓練樣本集化為小規模訓練樣本集；其二是應用獨立分量分析ica對需要進行識別的字元圖像預處理，提取字元特徵，降低輸入數據的維數，從而可以為下一步的svm識別過程提供好的數據集，用以提高識別率和識別速度。
  14. Adopting full - stroke braking, friction overloading assurance as well as other advanced technology, this machine owns advantages of big table - board, large stroke, simple structure, large striking force, high number of strokes, reliable operation and convenient usage and maintenance

    該產品採用全行程制動摩擦超載保險等先進技術，具有大臺面大行程結構簡單打擊力大行程次數高工作安全可靠，使用維修方便等特點。
  15. This paper studies the typical two - unit series maintained system, the distributing of the units life have been known. by random sample to the life of units and simulate with computer, uses monte - carlo method, counts the failure time of every unit, and failure rate - the reliability character of two - unit series system is derived, together with its curve

    摘要研究了典型的兩元件串聯的可修系統，在已知元件的壽命分佈的條件下，應用蒙特卡羅方法，對元件的壽命進行隨機抽樣並進行計算機模擬，通過統計每個元件故障的次數，得出了兩元件串聯可維修系統的可靠性特徵量故障率，並繪出了曲線。
  16. The thesis firstly utilizes prototyping approach method to analyze the data requirements and the elementary function requirements, and then designs the concept structure of database, logic structure of database and physics structure of database in turn

    本課題從分析汽車維修企業的各種數據需求和功能需求入手，著手對數據庫依次進行概念結構設計、邏輯結構設計和物理結構設計。
  17. The paper analyses the on - line monitoring power transformer " s chromatogram of oil in the pingliang 110kv substation and investigation the status in quo of transformer insulation monitor based on chromatogram of transformer oil. after the analysis of deflection sources in routine chromatogram of oil test, the paper brings into effect successfully the equipment on the base of characteristic infiltrative film monitoring six gases dissolved in transformer oil in the pingliang substation 2 # transformer. through analyzing a great deal practical data, it is proved that the monitoring system is stable and reliable, and has the ability to show the transformer ' s running state

    論文通過對平涼110kv變電站實施主變壓器油色譜在線監測及目前國內外對變壓器油色譜在線監測技術的現狀分析，結合影響常規油色譜測量結果及誤差來源分析，在平涼變電站2 #主變壓器上成功實施了以滲透氣體膜原理為基礎的變壓器油中六種溶解氣體在線監測及診斷裝置，通過大量運行數據分析，系統運行穩定，能正確反映變壓器的實際運行情況，並有效抓住了變壓器的一次故障，可作為狀態維修的依據。
  18. The lincoln bedroom has been redecorated several times inthelast 50 years, most notably by jackie kennedy. in thelatestmakeover, the white house renovated the room in bolder colorsandpatterns in the victorian style

    在過去50年，林肯臥室曾經經歷了數次重裝修，而大多數重裝修都發生在傑奎琳?肯尼迪擔任美國第一夫人期間。在最近一次裝修中，白宮將林肯臥室裝修成維多利亞時代的風格，臥室的顏色變得更加開放。
  19. Adopting full - stroke braking, friction overloading assurance as well as other advanced technology, this machine owns advantages of simple structure, big striking force, high number of strokes, reliable operation and convenient usage and maintenance

    該產品採用全行程制動摩擦超載保險等先進技術，具有結構簡單打擊力大行程次數高工作安全可靠，使用維修方便等特點。
  20. In the tasks in this topic, you modify the customer dimension by deleting unnecessary attributes changing attribute and user - defined hierarchy names, changing user - defined hierarchy properties, and defining user friendly attribute names based on new named calculations in the data source view

    在本主題的任務中，可以通過以下方法修改客戶維度：更改屬性和層次結構名稱、更改用戶層次結構屬性、基於數據源視圖中的新命名計算定義維度屬性、刪除不必要的屬性以及將屬性劃分為邏輯用戶層次結構。
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