空氣電導率 的英文怎麼說
中文拼音 [kōngqìdiàndǎolǜ]
空氣電導率
英文
air conductivity- 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...
- 氣 : Ⅰ名詞1 (氣體) gas 2 (空氣) air 3 (氣息) breath 4 (自然界冷熱陰晴等現象) weather 5 (氣味...
- 電 : Ⅰ名詞1 (有電荷存在和電荷變化的現象) electricity 2 (電報) telegram; cable Ⅱ動詞1 (觸電) give...
- 導 : 動詞1. (引導) lead; guide 2. (傳導) transmit; conduct 3. (開導) instruct; teach; give guidance to
- 率 : 率名詞(比值) rate; ratio; proportion
- 空氣 : 1 (大氣) air; atmosphere 2 (氣氛) atmosphere 3 (氣閘) air brake4 pneum ; pneumo ; pneumat ;...
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The matrix of time and space for development of hydrogen energy system in china will instruct this work comprehensively, scientifically and objectively ; for beijing case and from all the aspects of energy, environment and economy, the best plan of hydrogen energy system about fuel cell vehicles is : hydrogen is produced by natural gas steam reforming in the central factory, then transported to the refueling stations in the hydrogen tube trailer by the trucks, and filled to the fcb using hydrogen gas
這一工作應在燃料電池汽車氫能系統發展時空矩陣的指導下有計劃、有步驟地完成;燃料電池汽車在我國最早實現商業化的時間是2008年(奧運會) ,地點是北京,車型是燃料電池公共汽車。針對這一案例,綜合考慮燃料電池汽車氫能系統「從井口到車輪」全生命周期的能源利用效率、環境影響和經濟性指標,最佳的方案是:在集中制氫廠採用天然氣蒸汽重整制氫,用汽車將裝有氫氣的高壓氣瓶輸運到氫氣加註站,加註給以氫氣為燃料的燃料電池公共汽車。Test results indicated : with the hoist of altitude, the increase of ice amount and the rise of pollutant, the average flashover voltage reduced. the character exponent generally depends on the insulator profile, ice amount, ice state and pollution severity etc. by means of a high - speed camera, a data acquisition system and high voltage test facilities, a series of the flashover processes on ice surfaces were record. the experimental results form this study and the subsequent theoretical analyses suggested : the thermal ionization of the air in front of an arc root resulted in arc movement ; the electrostatic force had an auxiliary effect of impelling arc propagation ; the electrical
通過對攝像機、數據採集系統及高壓試驗裝置記錄覆冰絕緣子表面閃絡電弧的發展過程的試驗結果進行理論分析得出:弧根周圍空氣的熱電離導致了電弧的發展,靜電場力對電弧的發展起到了加速作用,電擊穿僅發生在閃絡最終的跳躍階段;通過測量閃絡過程中的放電電壓、泄漏電流、閃絡時間、覆冰水電導率、電弧長度及電弧半徑等參數,得到了不同階段電弧(電弧起弧階段、電弧發展階段及完全閃絡)的發展速度、臨界電弧長度均隨覆冰水電導率的增加而減小。Major products : water quality testing monitoring instrument : ph meter, conductivity meter, tds meters, orp meter ; pna meter, salt meter ; rotary speed measurement of the machinery manufacturing equipment : many functions tachometer ; air quality testing instrument : thermometer, hygrometer ; others : refractometer, water pump
主要產品:水質檢測監控儀: ph酸度計ec電導率儀tds計orp氧化還原計鈉度計鹽度計機械製造設備轉速測量:多功能轉速表光電轉速表空氣質量檢測儀:數字溫度計溫濕度表光學檢測儀器:折射儀以及污水潛水泵。The ultraviolet absorption edge becomes steep and moves to longer wavelength, and the optical band gap decreases. the optimal quality and ultra - violet absorption property of the zno thin film annealed at 450 are obtained
中性氣氛中退火薄膜的電阻率基本不變,在真空和還原氣氛中薄膜的導電能力增強,而在氧化氣氛中薄膜的電阻顯著增加了七個數量級,成為絕緣薄膜。By applying related theory of gas discharge and mathematical statistics, this paper more in - depth and systemic study the influence of the length of air gap, ice state, water conductivity and air pressure on the inception corona and pulse discharge characteristics, included the discharge frequency, discharge amplitude and time interval
根據試驗結果,用氣體放電和數理統計方法,分析了覆冰水電導率、冰的狀態(乾冰和濕冰) 、空氣間隙長度、氣壓和施加電壓等參數的變化對間隙模型的起始放電電壓、脈沖放電特性、放電頻率、放電幅值和時間間隔等的影響。At the same time the number of holes for liquid flowing, gas flowing and blocked to the number of total holes was defined as liquid flowing ratio, gas flowing ratio and blocked ratio. the experiment was made with in - diameter 500mm column using water - air system, the ratio was first delected in detail by multi - path conductivity gauge for the compound tray with free area 20 % and 25 % respectively
採用多路電導測試儀,在直徑500mm的冷模塔內,以空氣-水為介質,首次較系統地測量了開孔率為20和25的復合塔板的通氣、通液和阻塞篩孔的數量比例,獲得了通氣率、通液率和阻塞率隨氣液變化的基本規律。The results show that transformation of transmission mechanism and much higher birefringence can be achieved after nlc - filling. farther, we firstly demonstrate the realization of modulating pbg and modes of pbg - pcfs by changing refractive index filled of filled nlc by virtue of temperature or electric field, and finally tunable
在此研究的基礎上,首次提出並設計出通過用溫度或者電磁場來調節空氣孔中液晶的折射率來連續調節這種高雙折射光子帶隙光纖中的傳輸帶隙和傳導模式,最終實現的高雙折射可調的光子帶隙光纖。In this paper, firstly, monolithic materials cosb3 and bi2te3 were prepared by sparkle plasma sintering ( sps ) respectively, and at the same time the microstructure of cosb3 and bi2te3 were studied by sem ; the seebeck coefficients and electrical conductivities of monolithic materials were measured by standard - four - probe method ( ulvac zem - 700 ) in a he atmosphere simultaneously, and their thermal conductivities were investigated by laser flash method ( tc - 7000 ) in vacuum. secondly, the junction temperature of graded bi2te3 / cosb3 thermoelectric materials was optimized based on the thermoelectric transport properties of monolithic materials, also when graded materials were used in the temperature difference ranging from 300k to 800k, the length ratio of monolithic materials cosb3 and bi2te3 were optimized in theory. thirdly, graded bi2te3 / cosb3 thermoelectric materials were prepared by two - step sps sintering, and the relationship between its average seebeck coefficients and temperature were calculated by theory mo del
均質材料cosb _ 3和bi _ 2te _ 3的電導率和seebeck系數採用標準四端子法于he氣氛下在zem - 1上同時進行測量;熱導率採用激光微擾法( tc - 7000 )于真空狀態下進行測量;其次,在對均質材料cosb _ 3和bi _ 2te _ 3熱電傳輸特性研究的基礎上,對結構梯度bi _ 2te _ 3 cosb _ 3熱電材料的界面溫度進行了優化;為了使結構梯度bi _ 2te _ 3 cosb _ 3熱電材料在300k至800k的溫度范圍內具有最佳的熱電性能,本研究同時對梯度結構熱電材料當中均質材料cosb _ 3和bi _ 2te _ 3材料的長度進行了優化設計;第三,通過兩步放電等離子燒結的方法制備出了結構梯度bi _ 2te _ 3 cosb _ 3熱電材料;採用理論計算的方法研究了梯度結構熱電材料平均seebeck系數和溫度的關系;同時為了驗證設計的結果,本論文對結構梯度bi _ 2te _ 3 cosb _ 3熱電材料的開路輸出電壓和熱端溫度之間的關系及梯度材料在300k至800k的溫度范圍內使用時的功率輸出進行了相應的研究。It relates to some new technologies, such as computer technology, electronic engineering, network and telecommunication. with the watermark sensor, ph / ec sensor, and relative humidity sensor etc., the supply of the exact amount of water and fertilizer is realized
系統引進了最新的計算機、電子、網路和通信等相關領域的最新成果,通過對土壤濕度、電導率、酸堿度及空氣溫濕度等信號的採集,實現全自動灌溉。Main propulsion equipments have been gradually improved. in addition, some additional systems are provided, such as the power station, deck machinery, refrigeration and air condition plant, freshwater generators, drinking water system, steam generating system, ballast and bilge system, and fire fighting system. the management of ship ' s power plant is also known as the engineering management, which is supervised and controlled by the engine department under the direction of the company ' s engine technology management department of the headquarters. owing to the complexity of power plant, the changeability of navigational conditions, and the seriousness of accident ' s consequences, it is essential to explore how to manage the power plant economically and reduce the occurrence of troubles so as to raise the shipping efficiency
隨著科學技術的發展,不僅推進設備逐步得到完善,而且還增設了諸如船舶電站、起貨機械、冷藏和空調裝置、制淡水裝置以及飲水、蒸汽、壓縮空氣、壓載、艙底、消防等系統。船舶動力裝置的管理即輪機的管理,是在船公司機務部門指導下由船上輪機部具體負責實施。因為船舶動力裝置的復雜性、船舶航行條件的多變性、發生事故後果的嚴重性,所以探討如何對輪機進行經濟性管理,減少故障,從而提高船舶的營運效率非常重要。Polyaniline ( pani ) is one of the most intensively investigated intrinsically conductive polymers because it has high specific surface, a good stability in the air and it can be prepared easily with rich sources
由於聚苯胺原料易得、制備方法簡便、和在空氣中良好的穩定性、以及較高的電導率而成為導電高聚物領域的研究熱點。In this paper, the author deduces the air dynamic and torque transmission system model for the 1. 3 mw active stall wind turbine, then founds the control model under the simulink circumstance. and does the output power simulation based on the certain wind speeds. then confirms the coefficients ki and kp
本文針對1 . 3mw風力發電機組,推導了了空氣動力學模型和傳動系統模型,在此基礎上在控制模擬軟體simulink環境下建立了風力發電機組控制模型,在給定風速下對風力發電機組的輸出功率進行了模擬,並確定了pi控制器的比例系數和積分系數。On the basis of the calculating of complexity ( c value ) and combination entropy ( h value ) from the numerical method of geoanomaly analysis, logged signals data ( spontaneous potential, acoustic slowness, spontaneous gamma ray and electrical resistivity ) and seismic data ( amplitude, frequency, phase, etc. ) are processed after regularization of data obtained from linqing basin of shengli oil field. many types of geoanomalies obtained from the computation are analyzed so the spacial variation rules of them can be discovered. then the oil regions can be predicted by this method
本文創新性地將地質異常概念引入油氣勘探領域,以地質異常理論為指導,以勝利油田臨清坳陷油氣地質異常預測研究為例,針對我國陸相含油氣盆地的常規測量、測試和解釋數據,如與地震相關的數據(振幅、頻率、吸收系數、層速度等) 、與測井相關的數據(自然電位、聲波、視電阻率、自然伽馬等)等,提取不同數據類型的地質異常以及異常組合特徵,通過對這些參數的綜合研究分析其空間變化規律,系統地建立有效預測油氣藏的新技術和新方法,進而達到區域油氣資源預測的研究目的。分享友人