電抗降下 的英文怎麼說

中文拼音 [diànkàngjiàngxià]
電抗降下 英文
reactance drop
  • 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...
  • 抗 : Ⅰ動詞1 （抵抗; 抵擋） resist; combat; fight 2 （拒絕; 抗拒） refuse; defy 3 （對等） contend with...
  • 降 : 降動詞1. （投降） surrender; capitulate 2. （降伏） subdue; vanquish; tame
  • 下 : 下動詞1. （用在動詞后,表示由高處到低處） 2. （用在動詞后, 表示有空間, 能容納） 3. （用在動詞后, 表示動作的完成或結果）
  • 降下 : abaissement
  1. Finally, the method of estimating power customer emission level based on binary linear regression is put forward, which make it a condition that harmonic emission is steady at the point of common coupling. combined with power system thevenin equivalent and customer norton equivalent, according to the principle of least squares method, the voltage that a customer ' s harmonic current begets at the point of common coupling can be estimated in the light of the plural correlation of network parameters

    最後，提出了基於二元線性回歸的用戶諧波發射水平估計方法，該方法在假設公共聯接點諧波發射穩定的情況下，結合系統側戴維南等值與用戶側諾頓等值的電路圖，按照最小二乘法原理，利用電網各參數的復數關系推導關于系統側諧波阻抗的二元線性回歸方程，並根據諧波阻抗的估計值求取用戶諧波電流在公共聯四川大學碩士學位論文（ 2003 ）接點產生的電壓降。
  2. The sensor could eliminate the interference of electroactive ascorbic acid, and exhibited high operational and storage stability ( no apparently difference in response of the biosensor was observed after been used continuously for 150 times and stored for 5 months )

    傳感器能有效消除電活性物質（抗壞血酸）對測量帶來的干擾，同時具有較高的操作和貯存穩定性（連續使用150次、冷藏5個月後，響應無明顯下降） 。
  3. With the development of the electric power system, static - state reactive power compensators ca n ' t have met the requirements of the actual production and operation, and the trend to the fast and dynamic compensation for reactive power become greater and greater. since ertan hydroplant and 500kv transmission systems in sichuan power system have been operated, many power plants of load center are forced to halt during the high - water period, because the great deal of power is transmitted to far - distance load center. thus the load center loses voltage sustentation and the level of the system stabilization is debased greatly

    四川電網的二灘水電站和500kv輸變電系統投入運行后，由於二灘水電站的大量電力遠距離輸送至負荷中心，迫使負荷中心的火電機組在豐水期大量停機，使負荷中心失去電壓支撐，大大降低了電網的電壓穩定水平；同時，因為四川電網中的無功補償裝置全為靜態無功補償電容器（或電抗器） ，這些設備只能在系統正常運行狀態下起到無功補償和電壓支撐的作用，而在電網出現事故時，不但不能起到電壓支撐作用，反而會促使電網電壓崩潰事故的發生。
  4. And the results of calculation and numerical simulation indicate, without increasing the intrinsic collector - junction area of power devices, collector - combed structure helps to raise the intrinsic heat - dissipating area and base ' s perimeter, improve heat - dissipating method of each cell of the chip, enhance the distribution uniformity of junction temperature and current of each cell of the chip, reduce the thermal resistance and raise the dissipation power pd and output power p0, fairly well relax the contradiction among frequency, out - put power and dissipation power of the devices, and further improve the devices " property against second breakdown

    而計算分析和二維數值模擬分析結果表明：梳狀集電結（基區）結構在不增加器件本徵集電結面積的條件下，增大了器件的本徵散熱面積和基區周長，改進了每個子器件單元內的散熱方式，提高了單元內結溫和電流分佈的均勻性，降低了器件的熱阻，增大了器件的耗散功率和輸出功率，較好地緩解了目前傳統結構中頻率與功率、功耗的矛盾，並有利於改善器件抗二次擊穿的性能。
  5. The pt secondary loop voltage drop is a changing amount and has the characteristics of indirection and certain randomness. the second, according to the cause of pt secondary loop voltage drop, the different methods to reduce the pt secondary loop voltage drop were analyzed and the conclusions are draw as below : 1. changing bigger section wire and maintaining the connector plugs regularly can reduce the pt secondary loop voltage drop effectively, but ca n ' t guarantee which meets the relevant rules

    首先，通過對電壓互感器二次壓降的形成機理進行分析，得出以下關於二次壓降的相關結論： 1 、電壓互感器二次壓降等於二次迴路阻抗和迴路電流的乘積； 2 、電壓互感器二次迴路阻抗分為元器件自身阻抗和接觸阻抗兩部分，且接觸阻抗佔主要部分，從而使得電壓互感器二次迴路阻抗具有動態特性，而且具有一定的隨機性； 3 、電壓互感器二次迴路電流與二次負荷和迴路阻抗大小相關，因而二次迴路電流也是變化的； 4 、電壓互感器二次壓降是一個變化量，且具有單向性和一定的隨機性。
  6. 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。
  7. From the experiment we have found out that the carbon fibre can improve the anode performance when it was used as pam additive and meanwhile it can have some benefits to the anode life. when its content at 0. 2 - 0. 3 % in pam can achieve its best result and under this situation it can improve the utilization of pam by 5 % at different discharge current. carbon fibre and sulfate sodium is used as complex pam additive and its effect is better than that of carbon fibre which alone is used as additive

    通過實驗我們發現，碳纖維作為鉛酸電池的正極活性物質添加劑能提高鉛酸電池正極的性能，並且對電池正極板的壽命有一定的好處，當碳纖維在正極活性物質中的含量為0 . 2 0 . 3能得到最理想的效果，這個時候能在各種不同的放電電流下提高正極活性物質的利用率5左右，並且能夠使極板的電化學阻抗降低。
  8. But to circular plate with large surface area, the vibrate modes generated is often so high that there is reverse phases existing, which result in a decrease in radiation impedance, electric - acoustic efficiency and the electric power, as well as poor directivity

    然而對于輻射面積較大的彎曲振動圓盤，一般激勵的振動階數比較高，因此存在彎曲振動的反相區，導致換能器的輻射阻抗下降，電聲效率和聲功率降低以及指向性變差等問題。
  9. In this paper, referring to qingju water power station, temperature control analysis and study has been done : study on the match ratio of the concrete and question of modifying of the special fine sand concrete to improve resisting ability of splitting of concrete ; study on the technology of the highly mixed fly ash to reduce the adiabatic temperature rise of concrete ; in case of the condition of resisting splitting to allow, study on the temperature control measure to strengthen and water the size of building, simplify the operational procedure, accelerate the construction speed, economize the expenses of the project

    溫控問題成為青居水電站設計和施工的關鍵技術問題。 、本文對水工大體積混凝土溫控問題進行了分析和總結，結合青居水電站閘壩工程，開展溫度應力及溫度控制研究:研究混凝土的配合比及特細砂混凝土『改性問題，提高混凝土的抗裂能力;研究高摻粉煤灰技術，降低混凝土的絕熱溫升:在抗裂條件允許的情況下，研究施工過程中溫控措施的簡化，以加大澆築尺寸，簡化施工程序，加快施工進度，節約工程費用。
  10. Compared with the similar research results, the weighted control ic here has the following characteristics : ( 1 ) the circuit structure is simpler ; ( 2 ) the chip ' s fabrication is compatible with standard cmos process ; ( 3 ) n - mosfets with high w / l ratio and short channels are used for weighting and output to reduce the insertion loss ; ( 4 ) the weighting factor varies in a relatively wide range with the controlling signals ; ( 5 ) input and output impedance approach 50 in low frequency ( e. g. 50mhz ), while in higher frequency they slightly deviate from 50, hence the energy reflection lower than 0. 1 ; ( 6 ) it completes the functions of sampling, weighting, controlling and summing of high frequency analog signals

    它的加權控制電路與已報道的相關電路相比具有如下特點：電路結構簡單；製造工藝與普通cmos工藝兼容：短溝道，高寬長比的nmos晶體管具有低的通導電阻，將其作為加權、輸出器件可降低由電路引起的插入損耗；改變加權信號，可實現權值在較大范圍內的連續變化；輸入、輸出阻抗在低頻（如50mhz ）下接近50 ，而在高頻下略有偏離50 ，但反射系數均低於0 . 1 ；實現了對高頻信號的取樣、加權、控制、疊加功能的迭加。
  11. Moreover, the impedance values decreased, the reactions became more easily, and the charge and discharge performance became better as the discharging potential decreased and the reactions also became easily as the cycling times increased

    且隨著放電電位的降低，阻抗值下降，反應變的越容易，充放電性能越好，隨著循環次數的進行，反應會變得容易。
  12. Compared with untreated graphite under the same condition, the surface electric potential of treated graphite changes in part, but unlike a1 ( oh ) 3, the oxidation ratio decreases 10 % when a1 ( oh ) 3 / graphite ( wt % ) = 10, and the wetting angle of treated graphite hold the line, namely the wetting ability is not improved. contrasted with the hydrolyze coating way, the deposition coating way has simple technical process, lower cost, and its disadvantage, for instance, coat layer distributes unevenly, the wetting ability is not improved. furthermore, the effect of treated graphite applied in mgo - c castables are investigated

    經沉澱法改性后，石墨的表面電性發生了一定的變化，其等電點從2 3變為7 8 ，但與al （ oh ） _ 3的等電點（ 8 9 ）存在一定的差異；接觸角測定結果則表明，經沉澱法改性后，石墨與水的接觸角並沒有改變，即改性石墨與水的潤濕性沒有明顯改善；當al （ oh ） _ 3石墨（ wt ） = 10時，改性石墨的氧化失重率比未改性石墨下降了約10 ，這說明經沉澱法改性后，石墨的抗氧化性得到了一定的改善。
  13. Treated by hydrolyze coating way, the surface electric potential of graphite moves and iep changes from 2 - 3 to 8 - 9, reach the one of a1 ( oh ) 3 ; moreover, the wetting angle of treated graphite decreased 10, and the oxidation ratio decreased 20 % when al ( oh ) 3 / graphite ( wt % ) = 10, compared with untreated graphite under the same condition. that is to say, the wetting and anti - oxidation ability of graphite is improved, after treated by hydrolyze coating way

    經水解法改性后，石墨的表面電性發生改變，其等電點由2 3變為8 9 ，與al （ oh ） _ 3的等電點相近；與未改性石墨相比，改性石墨與水的接觸角下降約10 。當al （ oh ） _ 3石墨（ wt ） = 10時，水解法改性石墨的氧化失重率比未改性石墨下降了約20 ，因此經水解法改性后，石墨與水的潤濕性有所改善，抗氧化性有所提高。
  14. In the research and preparation procedure, it probes into electric field dynamic impedance variation rules, summarizing a set of sparks critical point discrimination methods in solving the key to detect electric field less - spark technology and realizing the less - sparks operation controlling function under impending arcover voltage, putting forward and realizing constant spark rate operation mode, in fiashover treatment adopting method of small descending amplitude, speedy picking up speed, and unlocking silicon controlled rectifier

    在研製過程中探索了電場動態阻抗變化規律，總結出一套識別火花臨界點的方法，解決了探測電場少火花的技術關鍵，實現了逼近擊穿電壓下少火花運行控制功能，提出和實現了恆定火花率運行方式，在閃絡處理上採取下降幅度小、回升速度快、不封鎖可控硅的方法。
  15. 8. very small section aluminum wire is used for coil wire in reactor so as to reduce loss of eddy current in wire effectively

    8 .電抗器採用截面很小的鋁導線2 4作為線圈導線，有效地降低了諧波狀態下的導線中的渦流損耗。
  16. With analyzing the profound background of its emergence, this thesis points out that broadcasting news " civilianization is the trend of the times because of the development of national production and popularization of education and consuming, emphasizes that advocating this kind of civilianization does not mean confronting refined culture, not even descending of media ' s quality

    本文分析了我國廣播電視新聞平民化產生的深刻背景，由於我國生產力的發展、教育和消費的普及，產生了平民化的潮流，廣電新聞趨于平民化是時代的必然趨勢。廣電新聞平民化不意味著對抗高雅文化，更不等於傳媒價值品位的下降。
  17. In this paper, the volume density, hardness, bend strength and electrical conductivity of cf / cu ( c ) - cu composites have been tested. the results show that, after graphite is coated by copper, the electrical conductivity, bend strength and volume density of cu ( c ) - cu composites is remarkably increased. with the increase of copper coated graphite, the static characteristics are reduced

    本論文通過對不同成分復合材料試樣的密度、硬度、抗彎強度和電阻率等靜態性能的測試發現，石墨粉表面鍍銅提高了材料的導電性能，同時材料的硬度、抗彎強度都有顯著的提高；但當鍍銅石墨粉繼續增加時，材料的導電性能降低，密度、硬度和抗彎強度下降。
分享友人
分享到 Line

分享到臉書