真空管時效 的英文怎麼說

中文拼音 [zhēnkōngguǎnshíxiào]
真空管時效 英文
vacuum tube ageing
  • 真 : Ⅰ形容詞（真實） true; genuine; real Ⅱ副詞1 （的確; 實在） really; truly; indeed 2 （清楚確實） cl...
  • 空 : 空Ⅰ形容詞（不包含什麼; 裏面沒有東西或沒有內容; 不切實際的） empty; hollow; void Ⅱ名詞1 （天空） s...
  • 管 : Ⅰ名詞1 （管子） pipe; tube 2 （吹奏的樂器） wind musical instrument 3 （形狀似管的電器件） valve;...
  • 時 : shí］Ⅰ名1 （比較長的一段時間）time; times; days:當時at that time; in those days; 古時 ancient tim...
  • 效 : Ⅰ名詞（效果; 功用） effect; efficiency; result Ⅱ動詞1 （仿效） imitate; follow the example of 2 ...
  • 真空管 : vacuum tube; vacuum valve; valve真空管電壓表 valve voltmeter （vv）
  • 真空 : [物理學] vacuum; empty space; vacuo
  • 時效 : 1 （在一定時間內能起的作用）effectiveness for a given period of time2 [法律] prescription3 [冶金...
  1. The second phase of this project, completed in 2005, was on a larger scale with 21 solar - powered water heaters installed on the roof of the university sports centre. the solar heating duct employed is different from the older type of solar - panels and is much more efficient. on sunny days the temperature of the water can reach 90 c ; following temperature adjustment, the water is provided to the sports centre and for showers in the kwok sports building

    第二期工程規模更大，有21套太陽能熱水器安裝在大學體育中心天臺，真空熱導管式太陽能熱水器有別于以往平板式太陽能熱水器，大大提高系統效能，在日照時份水溫可達攝氏90度，熱水經調溫后供體育中心及汾陽樓浴室淋浴之用。
  2. 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。
  3. 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。
  4. 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。
  5. Hardware circuit includes the unit loop circuits such as main loop circuit, drive circuit, control circuit, protective circuit, the circuit of power source and displaying circuit etc. the function that the induction cooker can realizes are mainly as follows : heat function, warm function, time function, no pan detecting and alarm function, which includes overheat alarm, over voltage or under voltage alarm, fan failure alarm etc. the displaying interface has digital number display indicator and vacuum fluorescent display

    硬體電路主要包括主迴路、激勵電路、控制電路、保護電路、電源電路和顯示電路等單元迴路，主要實現的功能如下：加熱功能、定溫功能、定時功能、無鍋檢測功能、報警功能，具體包括過熱報警、過壓或者欠壓報警、風扇失效報警等。顯示界面有數碼管顯示和真空熒光屏顯示。
  6. On condition of high temperature, commonly above 60, the average efficiency of hhchp is 29. 8 %, while that of hgvt is 35 %

    高溫段（一般大於60 ）的時候，平板式太陽能熱水器日平均效率比真空管式太陽能熱水器日平均效率低。
  7. The bigger the diameter, the high the heat efficiency, but the weak the temperature increasing ability, length has less effect on the heat efficiency, tilt angle has less effect on the flow field and temperature field while it is larger than 30 degree, vacuum degree and emissivity have great effect on the flow field and temperature field while there is a great temperature difference between the liquid in the tube and the surroundings, the furring has less effect on the heat transfer but should be cleaned up in 3 - 5 years because of poor water quality, the higher the solar flux or the more the temperature difference between the liquid and the surrounding, the more the heat loss and the lower the heat efficiency

    分析了各種因素對太陽能真空集熱管流場和溫度場的影響。直徑越大，熱效率越高，但升溫能力弱；長度對熱效率影響不大；傾斜角度大於30后，自然對流已經能夠充分進行，考慮以能夠吸收到最大太陽輻射為主；真空度和發射率對熱效率和溫度場影響很大，尤其是在介質溫度與環境溫度差異比較大時；水垢對傳熱影響較小但由於水質的問題應該被3 5年清洗一次；太陽輻射強度越大，介質溫度與環境溫度差異越大，熱損失越大，效率越低； 4
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