最大壽命 的英文怎麼說

Hardened seating surfaces ? both disc and body seating surfaces are hard faced for maximum service life

硬化的閥座表面?閥瓣和閥體地閥座表面都經過表面硬化，最大限度延長使用壽命。

Narwhals maximum life span is about 50 years

（壽命：獨角鯨的最大壽命大約為50年。 ）

Precision profile disc : provides bubble - tight shut - off and assures minimum torque and longer seat life

精密準確的蝶板輪廓：防止「泡緊」關閉困難，確保最大程度見效扭矩，延長閥座壽命。

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。

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。

（ ceramis headwork : 500, 000 life cycles, water static pressure max, 35 bar ）

陶瓷閥芯：使用壽命開關50萬次，靜態最大耐壓35巴。

Then, with the concept of accumulated failure probability, the proposed approach combines the least ? quares method with bayes " theorem, takes advantage of the parameter estimation for single weibull distribution to each derived subgroup data set, and estimates the parameters of each subpopulation. the estimates given by this paper also satisfy the maximum likelihood equation. the mean time to failure and the reliability estimation of the mixed population are given

然後通過利用累積失效概率等概念，對每個導出的子組數據集聯合運用最小二乘法、貝葉斯定理和對單一威布爾分佈的參數估計法，從而得到每個子總體的滿足極大似然原理的參數估計，給出了該混合總體平均壽命和可靠度的估計。

Body ? full ported, heavy duty body with api 600 wall thickness for maximum service life. provided with bosses for optional by - passes or drains

閥體-全流道（全埠） ，重型閥體，符合api600標準的壁厚，最大限度延長使用壽命。可配置用於旁路閥或排泄閥的輪轂。

Engine and performance : two stroke air cooling engine, powerful ; key parts imported, reliable and durable ; excellent start - up performance of no less than three times ' drawing, easy and convenient to operate ; chain wheel drive, minimum power loss ; constantly variable speed and disk brake guarantee your safety

動力性能：風冷二沖程發動機，功率強大，多種進口件組裝，性能穩定可靠，壽命長；優異的啟動性能，保證您不超過三次拉動，即可啟動發動機；採用無級變速裝置及性能優良的碟剎系統，使整車運行安全可靠，操縱方便；鏈式傳動，令功率損失減至最小。

In this thesis, we set our background in lishui bridge over shigui mountain in changsde, hunan province. through life circle cost program, the cost perdition of bridge structure in its life circle and its maintenance optimization can be demonstrated vividly

本文以湖南常德石龜山澧水大橋為工程背景，通過壽命周期成本程序，清晰地反映出橋梁結構在其預期的壽命周期中的一系列成本預測和最優化維護安排。

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。

Although there is little information on how donors ultimately fare, iran can claim to have solved a problem which in most western countries is growing more acute : a rapid increase in the number of people whose lives could be extended, or improved in quality, by kidney transplants ? and a failure of the supply of kidneys to keep pace

盡管沒有多少有關捐獻者最終如何生活的信息，伊朗也能宣稱已經解決了大多數西方國家日益嚴重的問題：通過腎臟移植來延長壽命或改善機能的人數的激增，以及因為腎臟供應的短缺而無法滿足移植需求。

To directly estimate the life of this kind of motor, and to design a orbit curve with the longest life at same condition, this paper gives theoretic research of the equal contact stress inner curve of radial piston motor. the research is divided into four parts : 1 ) taken all forces the piston endured into consideration when radial piston motor working, the force between roller ( or ball ) and orbit is deduced. the simple style of the press expression can be confirmed by ignoring minor influence factors after analysis all factors that will influence this press

靜壓傳動技術在各類工程機械中得到廣泛的應用，對作為其核心部件的徑向柱塞式低速大扭矩液壓馬達的研究顯得十分重要，為了能直接對這種馬達進行壽命估計，並能在相同工況下求得壽命最長的軌道曲線，本文從設計等接觸應力內曲線的角度對這類馬達作探討性的研究，主要從以下四個方面進行： （ 1 ）綜合考慮徑向柱塞式液壓馬達工作時的各種主要受力狀況，對柱塞組件進行受力分析，並通過模擬分析影響軌道和滾動體間正壓力的各個因素，得到正壓力的簡化表達式。

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。

3. the mid - span deflection of slight corrosion specimens is smaller than that of non - corrosion specimens on the static loads and the fatigue loads ; the maximum crack width of slight corrosion specimens is larger than that of non - corrosion specimens ; fatigue life of slight corrosion specimens is shorter than that of non - corrosion specimens ; the corrosion of re - bars is a sensitive factor to fatigue life

（ 3 ）輕微銹蝕試件梁的跨中撓度在靜載和循環荷載下比未銹蝕梁小;輕微銹蝕試件梁的最大裂縫寬度比未銹蝕試件梁的最大裂縫寬度大;輕微銹蝕試件梁的疲勞壽命比未銹蝕試件梁的疲勞壽命降低，鋼筋銹蝕是疲勞壽命的敏感因素。

Two new methods have been put forward to estimate the reliability characteristic parameter. a software package has been developed to process the data obtained from reliability testing for electric apparatus. it consists of both the determination of failure distribution and the estimation of reliability characteristic parameter

最後，設計出電器可靠性試驗數據處理軟體包，此軟體包含了產品失效分佈類型的確定和可靠性試驗結果為大子樣、小子樣、無失效數據時可靠性特徵量的估計方法，以及恆定應力加速壽命試驗數據下的可靠性特徵量的估計方法。

Cr is the only known dietary measure capable of extending maximum lifespan, as opposed to average lifespan

少吃飯是唯一一個延長最大壽命，而並非平均壽命的方法，這個夠強的！ ！