tube efficiency 中文意思是什麼

tube efficiency 解釋
電子管效率
  • tube : n 1 管，筒；顏料管。2 管狀地下隧道；〈口語〉（倫敦的）地下鐵道。3 【炮】炮身；【汽鍋】鍋管；【解...
  • efficiency : n. 1. 功效。2. 效率；效能；實力，能力。3. 【物理學】性能。
  1. Abstract : this paper explains the design of piercing die for steel tube, especially the manufacturing process using bench worker ' s experience to reduce the manufacturing cost. meanwhile, it also introduces the design of bending die for steel tube using the principle of take - out - slug, which can improve the work efficiency

    文摘:介紹鋼管沖孔模具的設計，如何利用鉗工的操作技能來製造上、下沖孔模具，降低製造成本；以及不用抽芯塊的原理來設計鋼管彎曲模具，從而提高工作效率。
  2. We specialize in manufacturing & developing the high efficiency self recuperative gas burners, which are widely used in direct heating and the radiant tube in various industrial heat treatment furnaces

    本公司專業生產和開發高效率空氣自身預熱式燒嘴，廣泛應用於各種工業熱處理爐的明火或輻射管加熱
  3. A mdc with a refocusing system is simulated with the help of a 2. 5 - dimensional ( 2. 5 - d ) software, in which the secondary electrons are considered. these jobs offer a guarantee for the improvement of the tube efficiency. the organization of this paper is as follows

    論文的主要內容概括如下:在第一章概述中，首先介紹了行波管及其發展情況，接著介紹了多級降壓收集極和效率問題，分析了提高效率的方法。
  4. Under the precondition that the radiator has enough cooling efficiency and intension, it is the necessary trend that the volume is less, the weight is lighter, the tube wall and belt materials are thinner, and the cooling efficiency is higher

    在保證散熱器具有足夠散熱能力和強度的前提下，體積更小、重量更輕、管壁及帶材更簿、散熱效率更高成了散熱器發展的必然趨勢。
  5. The heat - exchange apparatus is the window for air - conditioner to exchange energy with outside. we analyze the efficiency of heat - exchange apparatus by the theory of heat - transmit, and compare the advantage and disadvantage of different type evaporator ' s and condenser ' s design by lots testing, and compare the effect of heat - exchange for different type flake, and compare the effect of heat resistance for different stretch of copper tube and flake. then we get many useful results from those different comparing

    蒸發器與冷凝器統稱為換熱器，換熱器是空調器與外界進行能量交換窗口，利用傳熱學原理對換熱器的效率進行分析，通過大量的試驗比較不同的蒸發器，冷凝器設計方案的優劣；比較冷凝器使用不同片型對換熱效果的影響；比較銅管與翅片的不同脹緊對熱阻的影響，通過比較得出很多有用的結論。
  6. The characteristic of the forming of shock wave in the tube and the influence of the shock wave intensity on cooling effect was also analyzed in working time. the reason why the cooling efficiency was lower in low rotate speed and has no change in high rotate speed was revealed

    分析了振蕩管實際工作時管內激波形成特點及激波強度對冷效應的影響，指出了實際壓力波製冷機在低轉速下運行時製冷效率很低而在高轉速下製冷效率變化不大的內在原因。
  7. The coupling from the pulse jet in the nozzle to the unsteady flow in the tube was discussed. and the relations between the parameters of gas charge and discharge, structure, working, flowing in tube and ideal cooling efficiency were established. the theory foundation of the influence of pulse jet on the flowing in the tube and characteristic would be built

    探討了脈動射流與管內非定常流動的耦合問題，建立了脈動射流有關參數如進、排氣參數、結構參數、運行參數等和振蕩管內流動參數及理想製冷效率之間的普遍聯系，為研究脈動射流參數對振蕩管內流動及其性能的影響打下了理論基礎。
  8. The character of tube roll mill is that it combines the advantages of ball mill and roller, then great improves the grinding efficiency through the study of the grinding theory of tube roll mill, pressing stress, grinding effect and the comparation between roller and vertical mill, this text combined the national important technology equipment crert item - - tube roll milling developing item, gets following results : firstly, because of the special structure of tube and roll, powder from single particle grinding in the early peried contincely transit press grinding stage, it better stops the loss of splash energy, secondly, during the grinding progress, powder form loose to dense fully uses the nonsmoth surface of particle and stress focus to make its stress lower than roller " s

    本文結合國家重大技術裝備國產化創新項目-筒式輥碾磨開發項目，通過對筒輥磨的粉磨機理、層壓應力的分析、粉磨效果的研究及與輥壓機、立磨粉磨效果、粉磨機理的比較，可知：首先，由於筒與輥的特殊結構方式，筒輥磨內粉體由初期的單顆粒破碎逐漸過渡到層壓粉碎階段，較好地防止了飛濺能的損失，其次，在粉磨過層中，粉體由疏鬆到密實，充分利用了顆粒的非光滑表面及應力集中效應使其應力低於輥壓機。實驗證實，筒輥磨的粉磨效果大大優于立磨和輥壓機。
  9. At the initial stage of planar technique, b was employed as ideal diffusion impurity in base - region of npn si planar devices because of the match of its solid - solubility and diffusion coefficient in si with those of p in emission - region, and the good shield effect of sio2 film to b. but because of the relatively large solubility ( 5 1020 / cm3 at 1000 ) and the small diffusion coefficient, the linear slowly - changed distribution of acceptor b in pn junction can not be formed, which could not cater to the requirement of high - reversal - voltage devics. thereafter b - a1 paste - layer diffusion technology and close - tube ga - diffusion technology had been developed, while the former can lead to relatively large the base - region deviation and abruptly varied region in si, which caused severe decentralization of current amplification parameter, bad thermal stability and high tr ; the latter needed the relatively difficult pack technique, with poor repeatability, high rejection ratio, and poor diffusion quality and productio n efficiency

    在平面工藝初期，由於b在硅中的固溶度、擴散系數與n型發射區的磷相匹配， sio _ 2對其又有良好的掩蔽作用，早被選為npn硅平面器件的理想基區擴散源，但b在硅中的固溶度大（ 1000時達到5 10 ~ （ 20 ） ，擴散系數小， b在硅中的雜質分佈不易形成pn結中雜質的線性緩變分佈，導致器件不能滿足高反壓的要求，隨之又出現了硼鋁塗層擴散工藝和閉管擴鎵工藝，前者會引起較大的基區偏差，雜質在硅內存在突變區域，導致放大系數分散嚴重，下降時間t _ f值較高，熱穩定性差；後者需要難度較大的真空封管技術，工藝重復性差，報廢率高，在擴散質量、生產效率諸方面均不能令人滿意。
  10. The multi - fishing collar is one kind of combinatorial tool for fishing of various sizes of sucker rod coupling, bar and well logging instrument in the interior of the casin tube. it is easy to operate, conveience and muilti - purpose, high efficiency sucker rod fishing tool

    多用打撈筒是一種在套管內打撈各種尺寸的抽油桿、接箍及加重桿和測井儀的組合式打撈工具，該工具結構簡單操作維修方便，是一種用途多、高效率的打撈抽油相工具。
  11. [ english ] the multi - fishing collar is one kind of combinatorial tool for fishing of various sizes of sucker rod coupling, bar and well logging instrument in the interior of the casin tube. it is easy to operate, conveience and muilti - purpose, high efficiency sucker rod fishing tool

    多用打撈筒是一種在套管內打撈各種尺寸的抽油桿、接箍及加重桿和測井儀的組合式打撈工具，該工具結構簡單操作維修方便，是一種用途多、高效率的打撈抽油相工具。
  12. It offered a preliminary research based on the field experiment to study the mechanism of how to increase yield by water filtration irrigation in a technological way. the pinhole rigid plastic tube was used to improve the cost to efficiency ratio

    試驗主要通過田間試驗，結合一定的技術分析方法，初步研究了大田玉米滲灌技術的節水增產機理，試驗採用成本低易普及的針孔硬塑料管，以提高效益成本比。
  13. 4. the inspection standard has been appraised. the air stagnation parameter and water stagnation parameter are enough to evaluate the quality of evacuated solar tube and the heat loss co - efficiency can be cancelled

    用空曬性能參數和悶曬性能參數來評價太陽能真空集熱管的好壞即可，取消平均熱損系數指標，空曬性能參數反映高溫能力，悶曬性能參數反映正常工作時的升溫能力。
  14. In order to improve the refrigerating efficiency of the micro - vortex - tube, we have proposed a cooling system of a micro - vortex - tube with humidifying at the hot end. the hot gas temperature is lower than the gas of environmental temperature through humidifying the hot gas in the hot end

    為了提高微型渦流管的製冷效率，提出了渦流管熱端加濕製冷系統，通過對熱端氣體加濕降溫，獲得低於環境溫度的氣體，同冷端氣體一起製冷。
  15. The concept of ghe efficiency is also introduced to discuss the effect of ghe construction parameters on its performance, especially that of thermal short - circuiting in the two branches of the u - tube. the geothermal heat exchangers often consist of a number of boreholes

    通過引入了地熱換熱器鉆孔內效能的概念，從理論上定量分析了鉆孔內各項參數、尤其是兩支管之間的熱短路對傳熱的影響，為地熱換熱器的優化設計奠定了理論基礎。
  16. Through experimentation, we compare the heat performance of hhchp with that of a solar water heater of glass vacuum tube ( abbreviated as hgvt ). the heat performance of a solar water heater includes instantaneous efficiency, average heat efficiency and heat loss coefficient

    通過大量的實驗，對蜂窩熱管平板式太陽能熱水器和全玻璃真空管式太陽能熱水器的熱性能進行比較，包括瞬時效率、日平均效率、熱損系數等。
  17. Sum up the characteristic of all kinds of the solar energy collector through the way in which the solar energy collector classifies ; analyse the principle and characteristic of the vacuum hot - tube collector of solar energy ; study the method of calculating the instantaneous efficiency of the vacuum hot - tube collector of solar energy, then prove the method through the experiment means

    通過對太陽能集熱器分類的方式對各類太陽能集熱器的特點作了歸納，並得出在遼河油田進行太陽能熱利用就必須採用熱管式真空管太陽能集熱器的結論;分析熱管式真空管太陽能集熱器的原理和特點;研究熱管式真空管太陽能的瞬時效率計算方法，然後進行了實驗驗證。
  18. Two conclusions about the tube will be drawn : l ) being used in the heater of 300mw unit, it will cause 57 % decrease of the heater ' s volume and make the workshop ' s area much more smaller, which is gained from the reasonable device of the heater itself ; 2 ) when used in 100mw unit, higher capability lower temperature difference higher feed temperature of the heater will be available and better economic efficiency of the unit will be gained

    應用雙側微肋強化換熱管后體積可以減小為原來的43 ，大大減小了加熱器佔用廠房的面積。 （ 2 ）雙側微肋強化換熱管應用於100mw機組熱電廠加熱器時，進行改造中，由於原加熱器存在很多缺陷，使加熱器傳熱性能降低，此時使用雙側微肋強化換熱管對加熱器進行改造時，可以提高加熱器傳熱性能，減少加熱器端差，提高加熱器給水溫度，提高機組的經濟效益。
  19. The thesis has done the widespread investigation and study to the domestic and foreign ’ s technologies of analogy low voltage and low power, and analyzes the principles of work, merts and shortcomings of these technologies, based on the absorption of these technologies, it designs a 1. 5v low power rail - to - rail cmos operational amplifier. when designing input stage, in order to enable the input common mode voltage range to achieve rail - to - rail, it does not use the traditional differential input pair, but use the nmos tube and the pmos tube parallel supplementary differential input pair to the structure, and uses the proportional current mirror technology to realize the constant transconductance of input stage. in the middle gain stage design, the current mirror load does not use the traditional standard cascode structure, but uses the low voltage, wide - swing casecode structure which is suitable to work in low voltage. when designing output stage, in order to enhance the efficiency, it uses the push - pull common source stage amplifier as the output stage, the output voltage swing basically reached rail - to - rail. the thesis changes the design of the traditional normal source based on the operational amplifier, uses the differential amplifier with current mirror load to design a normal current source. the normal current source provides the stable bias current and the bias voltage to the operational amplifier, so the stability of operational amplifier is guaranteed. the thesis uses the miller compensate technology with a adjusting zero resistance to compensate the operational amplifier

    本論文對國內外的模擬低電壓低功耗技術做了廣泛的調查研究，分析了這些技術的工作原理和優缺點，在吸收這些技術成果基礎上設計了一個1 . 5v低功耗軌至軌cmos運算放大器。在設計輸入級時，為了使輸入共模電壓范圍達到軌至軌，不是採用傳統的差動輸入結構，而是採用了nmos管和pmos管並聯的互補差動輸入對結構，並採用成比例的電流鏡技術實現了輸入級跨導的恆定;在中間增益級設計中，電流鏡負載並不是採用傳統的標準共源共柵結構，而是採用了適合在低壓工作的低壓寬擺幅共源共柵結構;在輸出級設計時，為了提高效率，採用了推挽共源級放大器作為輸出級，輸出電壓擺幅基本上達到了軌至軌;本論文改變傳統基準源基於運放的設計，採用了帶電流鏡負載的差分放大器設計了一個基準電流源，給運放提供穩定的偏置電流和偏置電壓，保證了運放的穩定性;並採用了帶調零電阻的密勒補償技術對運放進行頻率補償。
  20. The pick - up tube is one of the most important overflowing parts, and its design result will directly influent the efficiency of the roto - jet pump

    集流管是旋噴泵的重要的過流部件，它的設計的好壞直接影響到旋噴泵的效率。
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