最高壽命 的英文怎麼說
中文拼音 [zuìgāoshòumìng]
最高壽命
英文
maximum life span-
Abstract : the factors to influence fatigue life of chain plate areconcluded by experimental methods. the factors to prolong life of chain plate are analyzed by theoretical methods. the maximum value of crushing hole in 16a roller chain plate is calculated by finite element method
文摘:用試驗方法確定了擠孔對鏈板疲勞壽命的影響，從理論上分析了在最佳擠孔量下，鏈板疲勞壽命提高的因素，用有限元法計算了16a鏈板的最佳擠孔量，並與試驗結果進行了比較。Which country has the highest life expectancy
哪一國家人民平均壽命最高？Therefore, this dissertation based on the pre - research defense projects of “ research on longevous service and high reliability of satellite ” of the national tenth - five - year plan, study the method of uncertainty inference, and the application of rough set theory in the development of the satellite fault diagnosis system, the main content of this dissertation is as follows : first, this paper incorporate the status in quo of the technology of fault detecting and diagnosis and the artificial intelligence ( ai ), realize the newest trend of the technology of fault detecting and diagnosis is that using the technology of artificial intelligence to solve the certainty and uncertainty problem in the actual engineering area
為此，本文以國家武器裝備「十五」預研「衛星長壽命高可靠技術」研究項目為背景，研究不確定性推理理論中的粗糙集理論在衛星故障檢測和診斷中的應用，並開發相應的系統。主要研究內容包含以下幾個方面:論文首先結合故障診斷技術及人工智慧技術的發展現狀，明確了故障診斷的發展方向是使用人工智慧的最新研究成果去解決實際應用中更為常見的各種確定和不確定問題。分析了解決不確定推理技術的主要方法及各自的原理並進行了比較。It is important to seek the life period of device most economical and the integrated efficiency upmost in order to improve the benefit
人們日益意識到要提高港口的經濟效益就必須追求設備壽命周期費用最經濟和設備綜合效率最高。Space technology is the most influencing technology of moden science and technology. with widespread use of application satellite, people pay more and more attention to high accuracy and durability attitude control system
航天技術是現代科學技術中最具有影響力的高技術之一，隨著通信、遙感等衛星的廣泛應用，高精度、長壽命的衛星姿態控制系統成為人們對衛星關注和研究的焦點。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。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。Important features of mitex rollers include : long service life and cost efficiency ; high chemical resistance ; extreme high operating temperatures ; best running properties at high speed ; dynamic endurance ; excellent wear and cut resistance ; minimal hardening and glazing ; excellent coating and transfer characteristics ; and adjustable electrical properties
Mitex輥產品優點：在高速度下保持優異性能；使用壽命長，效率高；抗化學腐蝕；超耐高溫；耐磨；最低限度的硬化和磨光；優異的塗布和轉移性能；精確的電導率。The results indicated that the dimension, shape and purity of base material could meet the functional demand of solid lubricant ; the thermal decomposition temperature of ptfe resin exceeds 400 c, but organic and inorganic packing filler added in ptfe made the water absorption rate of composite material increased, melting temperature and decomposition temperature decreased, in the meanwhile oxidative decomposition reaction was accompanied ; polar groups such as c = o, c - o - c and so on in the carbon fiber surface is advantageous to increase compatibility with other components and interlayer shearing strength ; uniform design experimental method could help to find the relationship between formula and frictional property by relatively small tests. the developing trend of each formula ' s friction coefficient could be showed by fitting curve ; the friction coefficient with no copper powder or graphite in formula was relatively big. this fact showed that copper powder and graphite should be used cooperatively ; it was found that when the ratio of copper powder to graphite by weight is 15 : 60, 30 : 30 - 40 and 60 : 15 - 30 respectively, the friction coefficient was relatively small. the degree of crystallinity of pure ptfe reached maximum by air cooling and the abrasion loss also reached maximum among three ones ; at the same time, the abrasion loss of solid lubricant sample was also the biggest among three ones ; when solid lubricant matched with 45 # steel axle or gcrl5 steel axle, lubricant transfer film could be formed on metal surface, thus direct contact between the surface of metal friction pair rings was reduced. their working life was elongated extremely ; there was mainly much graphite, a little ptff, moo3, feso4, cus and so on in lubricant transfer film
試驗結果表明：所選原料的尺寸、形狀及純度可滿足固體潤滑劑的性能要求；聚四氟乙烯樹脂熱分解溫度超過400 ，但在ptfe中加入無機填料會使復合材料吸水率提高，熔融溫度及分解溫度降低，且伴有氧化分解反應；碳纖維表面含有c = o及c - o - c等極性基團，有利於提高其與其它組分的相容性，提高層間剪切強度；均勻設計試驗方法能夠用較少的試驗次數找出配方與摩擦性能間的關系，擬合曲線基本能表示各配方的摩擦系數發展趨勢；配方中不加銅粉或不加石墨，其摩擦系數均較高，說明銅粉和石墨應該配合使用；當銅粉15份、石墨60份時，銅粉30份、石墨30 - 40份時，銅粉60 、石墨15 - 30份時，摩擦系數均具有較低值；純聚四氟乙烯樹脂在空氣冷卻時結晶度最大，磨損量也是三者中最大的；同時，固體潤滑劑試樣在空氣冷卻時的磨損量也是三者中最大的：不論是固體潤滑劑與45 #鋼軸配副或是固體潤滑劑鑲嵌入銅套后與gcr15鋼軸配副，在金屬表面均可形成潤滑轉移膜，從而減少金屬摩擦副表面間的直接接觸，大大延長其使用壽命;轉移膜中主要含有較多的石墨、少量聚四氟乙烯、 moo 。The principal environmental characteristic of concern for pfcs is that they have long atmospheric lifetimes and high global warming potentials
我們最關注全氟化碳的重要環境特徵是它們有較長的大氣壽命和很高的導致全球變暖的潛力。In this paper, the high - temperature low - cycle fatigue life and fatigue crack propagation life tests are carried on the cylindrical axial symmetry specimens having precrack or non - precrack with different types of notches of 16mnr steel in common use in the petrochemical industry contacting coke drum equipment, the stress / strain and the range of stress / strain of dangerous points are received through stress analysis of the specimens using finite element program under multi - axial stress state. at last, the equations of evaluating the high - temperature low - cycle fatigue life and the fatigue crack propagation life are found through using the least - square regression method
本文採用無預裂紋和帶預裂紋環狀缺口圓柱形試樣，進行了石化焦炭塔設備常用材料16mnr多維應力狀態下不同缺口形式的高溫低周疲勞總壽命試驗及裂紋擴展壽命試驗，並利用有限元程序對試樣缺口周圍及裂紋尖端附近進行了軸對稱多維應力狀態下的應力、應變場分析，來評價材料不同條件下的高溫低周疲勞總壽命和裂紋擴展壽命，最後利用最小二乘回歸方法，得到了該材料高溫低周疲勞總壽命和裂紋擴展壽命評價方程。All matters are handled by hand such as company plan, record, plan, purchase of spare and supplies etc. these factors severely restrict the development of shipping technical management, for example, the efficient use of management expenses, the safety of ship, operation factor, the service life of ship, the professional ability of managerial handler and what is more, the dissatisfaction of client
船岸間的管理溝通也靠來往電函、表格郵寄以及管理人員登輪檢查等方式。這制約了船舶機務管理水平的提高，使管理費用居高不下，還影響到船舶的安全、營運率、船舶壽命及機務人員業務素質的提高。最終使船公司在市場競爭中處於劣勢。Model cs2 - dn high - speed bag sewing machine has fairly good capacity, adapted automatic lubrication system. we adapted roller bearing in some parts to accelerate the running speed and make sure the life span can be prolonged. this machine is suitable to make paper bag and woven plastic bag in the bag factories for mass produce. when it is equipped with automatic cutter, it formed high - speed bag making system
：本機cs2 - dn為性能優越的高速縫袋縫紉機，採用自動加油系統，並局部採用滾動軸承，轉速提高后，能確保使壽命的延長，適用於紙袋廠及紙塑復合袋等的製作，更適合於制袋流水線上使用，特別是和自動剪刀箱配套后，組成高速制袋系統，成為製作紙塑復合袋最理想的設備，可極大地提高復合袋的產量。Then i finish the analysis from three aspects, instruction of circuit, stress of surrounding, and tolerance, thus providing basis of design. the following designs are in progress from four aspects, which are circuit design, thermal design, derating using and screening. at last, i make the update generator in batch process, and collect and analyze reliability dates again
首先進行了與可靠性相關的數據收集與分析，對故障模式進行統計；然後從電路結構、環境應力及容差三個方面進行可靠性分析，從而為關鍵的可靠性設計提供了依據；接下來的可靠性設計，從電路設計、熱設計、降額使用、篩選四個方面逐一解決了可靠性分析階段發現的問題；最後，我將改良的發生器批量生產，並從中重新收集了可靠性數據進行計算，事實證明改良后高頻無極燈的平均壽命已達到6萬小時。Finally, the distribution discipline of the cyclic changing temperature damage factor under the conditions of low temperature through the equivalent assumption and energy equivalent model based on damage mechanics theory. the fatigue life of the 4cm depth sawed cracking road is obtained under the conditions of - 15 based on the shenyang - dalian highway. in this paper, the inhomogeniety of asphalt concrete resulting from temperature change is considered, when the influence of the temperature change on the semi - rigid asphalt pavement concrete is analyzed
最後，基於損傷力學理論，通過等效應變假設原理和能量等價模型，得到低溫下循環變溫損傷因子的分佈規律，以沈陽?大連高速公路的預鋸縫為工浙江大學博士學位論文廣義荷載作用下道路與軟基共同作用研究王金昌2003年5月程背景，預測了4cm深的鋸縫在一巧路表變溫作用下的疲勞壽命。By virtue of excellent quality, high efficiency, long service life and environmental - friendly performance, leopard batteries ( registered in america ) use in both the consumers and industries enjoy the good reputation as the manufacturer and oem service, meanwhile win the clients trust at home and abroad
2ah至3000ah ，其國際品牌leopard （已在美國注冊）和divinie產品以其高容量，大功效，超長使用壽命和環保的顯著性能效果贏得了廣大最終用戶和客商的充分信賴，產品遠銷國內外，享有一定盛譽。According to the present state that corrugated rollers life - span in our country is far lower than that abroad, corrugated rollers material has been analyzed deeply in this paper. a lot of experiments have been done on nine kinds of steel materials. through the analyses of hardness and micrographs of these heat - treated materials, new materials of corrugated roller have been picked up, which can prolong corrugated rollers life - span remarkably
針對目前國內瓦楞輥工作壽命遠遠低於國外水平的現狀，從瓦楞輥的材質入手，在分析瓦楞輥常用材質的基礎上，對九種可供選擇的材質進行了大量的科學試驗，根據熱處理后硬度及顯微組織分析，從中優選出了瓦楞輥的新材質，最終找到可大幅度提高瓦楞輥工作壽命的新途徑。Considering the past research results, frost resistance of concrete using portland cement, and the designed service life of 100 years of testing bridge, the control indexes of high durability concrete are defined in this paper. mixture proportion of concrete used in pier column, coping, precast box beam and plate of bridge is designed based on the compact pile theory, and construction technique is studied also
結合課題組以往的研究成果，根據試驗橋設計使用壽命100年的要求，確定出高耐久性混凝土的設計控制指標，基於最緊密堆積原理和最佳漿骨比原理對橋梁的墩柱、蓋梁、預制箱梁和橋面板用高耐久性混凝土的配合比進行設計，並對其施工應用技術進行了研究。From the experiment we have found out that the carbon fibre can improve the anode performance when it was used as pam additive and meanwhile it can have some benefits to the anode life. when its content at 0. 2 - 0. 3 % in pam can achieve its best result and under this situation it can improve the utilization of pam by 5 % at different discharge current. carbon fibre and sulfate sodium is used as complex pam additive and its effect is better than that of carbon fibre which alone is used as additive
通過實驗我們發現，碳纖維作為鉛酸電池的正極活性物質添加劑能提高鉛酸電池正極的性能，並且對電池正極板的壽命有一定的好處，當碳纖維在正極活性物質中的含量為0 . 2 0 . 3能得到最理想的效果，這個時候能在各種不同的放電電流下提高正極活性物質的利用率5左右，並且能夠使極板的電化學阻抗降低。It is our focus to provide the oriented products and services for our customers and to realize this purpose by manufacturing the products with best quality, long service life, high reliability and the lowest operating costs
我們的焦點是為用戶提供定向的產品和服務，按照生產高質量、高壽命、高可靠性，運行成本最低化的產品這一原則來實現。分享友人