高電流密度 的英文怎麼說

中文拼音 [gāodiànliúmìdù]
高電流密度 英文
hcd
  • 高 : Ⅰ形容詞1 （從下向上距離大; 離地面遠） tall; high 2 （在一般標準或平均程度之上; 等級在上的） above...
  • 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...
  • 流 : Ⅰ動1 （液體移動; 流動） flow 2 （移動不定） drift; move; wander 3 （流傳; 傳播） spread 4 （向壞...
  • 密 : Ⅰ名詞1 （秘密） secret 2 [紡織] （密度） density 3 （姓氏） a surname Ⅱ形容詞1 （距離近; 空隙小）...
  • 度 : 度動詞[書面語] （推測; 估計） surmise; estimate
  • 電流 : current; galvanic current; electric current; electricity; current flow電流保護裝置 current protec...
  1. The method of obtaining high concentration of na2feo4 solution by quick electrolysis mainly contains four aspects : adoption of either a diaphragm or an ionic membrane electrolytic cell in which a thin anodic cell lying between the two cathodes, ( 2 ) using an iron anode that has larger specific surface area, ( 3 ) keeping suitable concentration of naoh in the anodic cell, adoption of lower current density and higher electrolyzing speed. the practical technique parameters follow a s below : the naoh solution of 14 - 16mol / l, the temperature of 303 - 308k, the surface anodic current density of 300a / m2, the unit electrolyzing speed of efficiency larger than 6. 0a / l

    快速電解獲取高濃度na _ 2feo _ 4溶液的方法，主要包括四個方面：採用兩陰極室夾一厚度較小的陽極室的隔膜（或離子膜）電解槽；使用比表面積較大的鐵網陽極；保持陽極室中有適宜濃度的濃naoh溶液；採用較低的電流密度和較高的電解速度。具體工藝參數是： 14 16mol / lnaoh溶液、溫度303 308k 、表觀陽極電流密度300a m ~ 2 、有效單位電解速度6 . 0a / l 。
  2. Current density and electroplating velocity has line relation, but the increscent multiple of electroplating velocity is smaller than that of current density. which indicate that current efficiency decreases with the increase of current density at alcb + lialh4 system. at l - 5a / dm aluminum coating is dense and uniform, especially at 2. 5a / dm

    電流密度與電鍍速度兩者近似成直線關系，但電鍍速度增大的倍數比電流密度增大的倍數要小，說明在alcl _ 3 + lialh _ 4體系中隨著電流密度的提高，電流效率逐漸降低。
  3. The high - power semiconductor quantum well ( qw ) laser is a kind of luminescence device with superior performance, it has longe - lived, low threshold current density, high efficiency, high luminosity and excellent monochromatic, coherence, directionality, etc. the high - power semiconductor laser is widely applied to the fields, such as military, industrial machining, communication, information processing, medical treatment, etc. the material ' s epitaxy is the foundation of the whole laser ' s fabricating, and it has important influence on the optics and electricity performance about the laser

    大功率半導體量子阱激光器是一種性能優越的發光器件，具有壽命長、閾值電流密度低、效率高、亮度高以及良好的單色性、相干性、方向性等特點，廣泛應用於軍事、工業加工、通信及信息處理、醫療保健等領域。材料的外延生長是整個激光器器件製作的基礎，對器件的光學和電學性能有著重要的影響，生長不出優質的材料體系，獲得高性能的器件就無從談起，因此，材料的外延生長便成為了整個半導體激光器製作過程之中的重中之重。
  4. The ingaas / gaas strained quantum well lasers are able to work with extremely low threshold current density, high characteristic temperature and high cod limit, which make ld lasers achieve higher output power and longer ufe. therefore, ingaas / gaas strained quartum wellstructures can be used for the fabrication of high power semiconductor lasers

    Ingaas / gaas應變量子阱激光器具有級低的閾值電流密度、較高的特性溫度和較高的光學災變損傷閾值，這使得激光器具有更高的輸出功率和更長的壽命。因此ingaas / gaas應變量子阱結構可以用於大功率半導體激光器的制備。
  5. The results show that by using the brightener, current efficiency is improved and bright, corrosion resistant zinc deposits are obtained at a wide current density range

    結果表明：使用該光亮劑能提高鍍液的電流效率，且在很寬的電流密度范圍內獲得光亮、耐蝕的鋅鍍層。
  6. The flow characteristics, distributions of current density and chemical components, and the performance of these two different designs are calculated and compared. the flow and mass transport characteristics are analyzed in detail, which indicate that strong forced convection is produced in the interdigitated flow field, which consist of dead - end gas channel that force the gases through the porous electrodes. results of comparison show that forced convection induced by the interdigitated flow field in the diffusion layer effectively enhances mass transport of reactants and products, thus leading to a higher cell performance and the limiting current density

    在傳統流道設計的pemfc中，反應物從流道到催化層的供應和生成物從催化層到流道的排出主要是以擴散為主，而在交叉梳狀流道設計中，以流動帶動的對流傳遞則占據了主導地位，而且這種以對流為主的傳遞機理大大提高了反應物和產物傳遞速率，從而有效地改善了電池的極限電流密度和極化性能等特性。
  7. In the third chapter, the influence of current density, solution concentration, erosion time and aging in ambient air on the pl spectra of ps suggests that peak would blue shift with current density increasing, and with erosion time and aging time prolonging ; with the increasing of solution concentration, peaks would red shift when solution concentration less than 1 : 1 but blue shift when solution concentration greater than 1 : 1. above phenomena can be explained by quantum confinement and light center model, but do not deny the action of si - h bonding and defect on the surface in the process of photoluminescence. at present, radiation mechanism is still one of the primary problems in the study of ps

    在第z三章中；通過對比，分析了電流密度、陽極化時間、溶液濃度以及自i然氧化時間對多孔硅光致發光光譜的影響，認為在一定的范圍內，多i孔硅的發光峰位會隨電流密度的增大而藍移，要獲得較強的發光，需z要選擇合適的電流密度；隨著腐蝕時間的延長，多孔硅的發光峰位會i發生藍移；當f酸的濃度較小q ： 1 ）時，峰位隨濃度的增大表現為向i低能移動；而當f酸的濃度較大河山時，峰位隨濃度的增大則表現z為移向高能；多孔硅在空氣中自然氧化；其發光峰位發生藍移，而強i度隨放置時間的延長而降低。
  8. It has been confirmed practically that the diamond highness above base material can be adjusted with the range when the generator is put into use, and the result shows that the current density drop sharply with the increase of machining gap

    結果表明，間隙值的擴大伴隨電流密度的顯著下降，檢測電解電流控制脈沖能量的方法對實現電蝕層厚度基本可控是可行的，可讓金剛石突出一定高度。
  9. When it is discharged at high - rate, the distributions are also the most uniform at the end of the discharge. this indicates that the positive plate with the red lead has the better discharge performance than the other two kinds of positive plates

    含紅丹的正極板在化成初期電流密度和電位的分佈最均勻，極化最小，在高倍率放電結束時，其電流密度和電位分佈也最均勻，表明含紅丹的正極板的放電性能比其它兩種正極板好。
  10. Experimental investigation of a high emission and intense current electron - beam diode

    高發射電流密度二極體實驗研究
  11. When deposition current density was increased, w content in the coating was raised and deposition current efficiency decreased

    隨著沉積電流密度的提高，鍍層中w的含量增大，而沉積電流效率降低。
  12. Because of the limitation of experimental conditions we failed to form foam lead grid in the experiment. copper draw net is used as anode grid and it can improve to some extent the utilization of pam. due to human errors in the experiment we have not used the same discharge current density

    在實驗中我們試圖通過鑄造法、電鍍法和還原法等一系列的實驗辦法製作泡沫鉛板柵，由於實驗條件的限制，沒能夠成功制得泡沫鉛，而在使用銅拉網作為正極板柵的時候，能夠使電池的正極活性物質利用率有提高，但由於實驗時候的失誤，沒能夠使用相同的放電電流密度進行放電，我們無法利用實驗數據比較出具體能提高的數字。
  13. According the key factors we find, we bring forward a new conception : multilevel suppressor and design a new high performance suppressor whose ion - exchange membrane has bigger areas and using three electrodes including one cathode ( anode ) and two anodes ( cathode ), at the same time we fill the suppression compartment with one kind of ion exchange resin which has moderate exchange capacity. according to our experiment ' s results, we find the new type suppressor has quite high working current efficiency and suppressing capacity. in most cases, the suppressor ' s current efficiency is over 90 % ; the suppressor can transform the naoh ( concentration : 200mmol / l, flow rate : i. oml / min, conductance : over 10000 i - i s cm " ) to pure water ( conductance : 8. 9 it s cm in chapter 3, the high performance suppressor is applied in determination some trace - amounts ions in plating solution, sewage. in this chapter, we also have a research on the gradient ion chromatography

    第二章首先以xyz - 1型電化學抑制柱為例，分析了電化學抑制柱的抑制過程得出影響抑制容量的主要因素主要是抑制柱的電流效率和離子交換膜的極限電流密度，因此採用中等交換能力的離子交換樹脂作為抑制室的填料以提高電流效率，在通常情況下電流效率可達到90以上；在選用同種離子交換膜的前提下，可通過增加離子交換膜的有效面積達到提高極限電流的目的從而提高抑制柱的抑制容量，因此提出了多級抑制的概念並據此研製了共電極式高容量電化學抑制柱，該抑制柱最高可將流速為1 . 0ml / min ，濃度為200mmol / l電導率超過10000 s ? cm ~ （ - 1 ）氫氧化鈉溶液抑制為電導率低至8 . 9 s ? cm ~ （ - 1 ）的純水，並且具有穩定性高、分析結果準確等優點。
  14. Seen from the experiment result, it is clear that the deposited coating obtained with the trivalent chromium electrodepositing method we use is smooth, homogeneous, dense, and has good unti - erosive ability, high stiffness. the color ol ihe deposited coaling ol irivalent chromium is similar with that of hexavalent chromium. further more, this process has a good ability of homogeneous and deep depositing with simple facility, high current efficiency, and wide working current flow and even more it avoids environmental pollution

    實驗結果表明，本文採用的三價鉻鍍鉻方法能電鍍出鍍層光滑、均勻、緻密、抗蝕性好、硬度高的鍍層，而且解決了鍍層顏色的問題，使三價鉻鍍層不僅具有現行六價鉻鍍層的天藍色光澤，同時還具有電流效率高、均鍍能力與深鍍能力好、工作電流密度寬、設備簡單、無環境污染等特點。
  15. Reasonable matching of wafer and wire : the advanced matching of wafer improves average voltage in electric field and current density of wafer corona, which the dedusting efficiency is higher

    板線匹配更合理。先進的板匹配，有效地提高了電場平均電壓和板電暈電流密度，收塵效率更高。
  16. The x - ray diffraction, scanning electronic microscope and the squid were used to characterize the properties of the mgb2 core in mgb2 / fe tapes and wires. the effect of the proportion of mg, b and sic as well as the sintering parameters on the phase formation, microstructure and the critical current densities of mgb2 / fe tapes and wires was discussed in details. the results showed that the high purity of mgb2 core could be synthesized by both the traditional vacuum sintering and the sparking plasma sintering and the vacuum sintering environment restrained the oxidation of mg effectively

    相對于傳統真空燒結， sps燒結方式成相速度快、樣品晶粒細小均勻、 mgb2超導芯緻密性好、晶間連接優良，因而sps燒結樣品的臨界電流密度明顯高於傳統真空燒結樣品，其中未摻雜的帶材樣品經過sps800 ， 15分鐘燒結后，自場下的臨界電流密度jc值在10k時達到8 . 64 105a / cm2 ，而且隨著測量溫度和外加磁場的增加， sps燒結樣品的臨界電流密度下降率比傳統真空燒結樣品緩慢，在20k ，自場時為5 . 97 105a / cm2 ， 20k ， 3t時，臨界電流密度值仍大於104a / cm2 。
  17. We have made three - dimension electric conduct grid by hand and we have successfully used it as anode grid in lead - acid battery. this kind of three - dimension electric conduct grid can improve the utilization of pam by 7 - 9 % in different discharge current density and can reduce the plate electrochemical impedance to one tenth of the normal plate. also this kind of grid can improve the marginal reaction current density in a certain degree

    我們通過手工製作了三維導電體板柵，並成功的應用於電池的正極作為正極的板柵，這種三維導電體板柵能夠在各種不同的放電電流密度下提高正極活性物質利用率7 9 ，能夠使電池正極板的電化學阻抗降低到普通板柵的1 10左右，使正極板的極哈爾濱j _程大學碩十學位論文限反應電流密度略有所提高，但是這種板柵的耐腐蝕性能很不理想，使得所製作電池的壽命很短。
  18. Simulation results show that cathode over - potential under low current density is considerably increased because of methanol crossover, but its effect becomes much lower under high current density

    模型顯示在低放電電流密度下，甲醇穿透顯著地增加了電池陰極過電位，降低了電池電壓；但在高電流密度下，甲醇穿透對電池性能的影響不顯著。
  19. Crystalline deposit obtained in low concentration of tungsten and current density, and amorphous or mixture microcrystal deposit obtained in high concentration of tungsten and current density

    當鍍液中鎢離子含量低，電流密度低時，鍍層為晶態結構；當鍍液中鎢離子含量高，電流密度大時，鍍層呈非晶態或混合微晶態結構。
  20. Scandate cathode has outstanding properties of high emission at low work temperature. it ’ s the only thermionic cathode which can suffice to the development of new electronic device ’ s requirement

    含鈧擴散陰極具有極其優異的低溫高電流密度的電子發射的能力，是目前唯一能滿足新型電子器件發展要求的熱陰極材料。
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