electric constant 中文意思是什麼

electric constant 解釋
電常數
  • electric : adj. 1. 電的;帶電的;起電的,導電的,發電的,電動的。2. 令人激動的,緊張的,驚人的。3. 〈美口〉(樂曲的)用電吉他演奏的。n. 〈口語〉1. 帶電物體。2. 電動車輛。
  • constant : adj 1 恆定不變的,固定的,穩定的,恆久的;繼續不斷的。2 不屈不撓的,堅韌的。3 忠實的,有節操的。n...
  1. Inspection methods for basic parameters of environmental testing equipments for electric and electronic products centrifugal machines for constant acceleration test

    電工電子產品環境試驗設備基本參數檢定方法穩態加速度試驗用離心機
  2. The piezoelectric constant ( dji ) changes with the polarization time under saturated electric field. the d33 increases rapidly with the polarization time at the initial stages of polarization, and approaches constant after certain time

    在飽和電場( es )下,壓電常數( d33 )隨極化時間( tp )的變化而變化,極化初期d33隨tp的增加而迅速增高;極化一定時間后, d33趨于平緩。
  3. There are over 80 sets test apparatus in tech - innovation centre, including : anechoic chamber, vibration tester, vibration measurement analysis, impact instrument, constant temperature and humidity facilities. salt spary test case, circle insulation withstand voltage tester, insulation resistance tester, withstand voltage tester, electric lead tester, electrical leakage tester, earth resistance tester, chassis dynamometer, chassis dynamometer control system, high stability dc resistance tester, electrical capacity tester, temperature rise test system

    中心擁有各類分析測試儀器和試驗裝置80餘臺套,包括:消音室振動臺噪聲振動測試分析系統沖擊儀恆溫恆濕實驗儀鹽霧試驗箱匝間耐壓分析儀絕緣電阻分析儀對地耐壓分析儀泄露電流測試儀對地電阻測試儀測功機測功機控制系統高精度直流電阻測試儀電參數測試儀帶電溫升測試儀復合式三坐標測量儀萬分投影儀及電功測試分析系統等。
  4. Was established in 1996, grows fast as the development of the econnomy, we mainly research, develop and produce plastics, metal dustless coating macbine, transmission equipment, cprintedilk production line and all kinds of nonstandard industrial equipments, such as automatic constant temperature and constant humidity uv ray solidified production line, we also provide automatic electrostaric cleaning system and reciprocator, and piastic of coating cine mobile phone, camera, pda, dvd. stereos coating line, single or double core - strained powder - recycling system, full stainless steeled spraying. overflowing pre - treatmentsystem, gas or oil combustion machine, electric heat drying stove, workshop cleaing, air supplier cleaning equipment etc

    其中包括恆溫恆濕及全自動uv光固化生產線;全自動靜電除塵設備系統及往返系統;手面、相機、掌上電腦、 dvd 、多媒體音箱等塑膠外殼塗裝生產線『單、雙回收濾芯式粉體系統;全不銹鋼噴淋式、游浸式前外理;燃氣、燃油、電熱風烘乾爐;凈化車間、凈化供風設備等。
  5. Design of high precision universal constant temperature control system for electric resistance furnace based on plc

    的通用高精度恆溫控制系統設計
  6. Electric arc furnace ( efa ) system is a complex plant, which exits serious non - linearity, time changing, strong couple. the constant impedance control method, which base on classical control theory has been used widely

    電弧爐系統是一個具有較強非線性、時變性和強耦合的被控對象,目前普遍採用的是基於經典控制理論的恆阻抗控制方式。
  7. We have done a serial of experiments to study the pam and anode grid with the aids of the measurement such as constant current charge / recharge, cyclic voltammetric measure ments, electric impedance spectrum and so on

    我們通過恆電流充放電、交流阻抗和循環伏安等實驗方法和測試手段對鉛酸電池的正極活性物質和板柵進行了一系列的研究。
  8. In a constant electric field, a charged particle experiences constant acceleration.

    在恆定電場中,帶電粒子得到恆定的加速度。
  9. The research and application of by the constant electric current coulometric analysis method replacing the capacity analysis method

    以恆電流庫侖分析法取代容量分析的研究與應用
  10. According to the theory of light transmission, we derived the expression of rotation angle as a function of the dielectric constant conductivity of er fluid, and ( the angle between the electric vector of linearly polarized light and electric field ) from maxwell ' s equations and fresnel reflection, on the condition of several appropriate approximations and assumptions

    進而導出了非均相結構電流變液在外電場與光場交互作用下旋光角與(入射線偏振光振動方向與外加電場方向間夾角)及參數(為外加電場e 、分散顆粒介電常數、體積分數、絕緣油介電常數、位置矢量( ? )等量的函數)的西北工業大學應用物理系碩士學位論文摘要理論表達式。
  11. This paper mainly discusses the variation of rotor time constant t2 and its influence to the system stationary and dynamic performance in electric vehicle ( ev ) drive system

    本課題針對電動汽車驅動系統的要求,主要討論了轉子時間常數的變化對于電機靜態和動態性能的影響。
  12. In such devices, it is desirable to have a high dielectric tunability in a certain electric field range, where tunability is defined as the variation of dielectric constant with respect to the applied voltage

    自上世紀50年代以來,用電控的方式進行波束掃描的方法得到了迅速發展,從而使相控陣天線及其基本元件移相器的研究獲得了廣泛的重視。
  13. The electric heat components and heated components in resistor furnace were regarded as research object, the simplified model was provided on the basis of simplification of studied objects, the thermotechnical theoretical calculation and analysis for it were done by utilizing radiation heat transfer theory, some main factors influencing the temperature of electric heat component were obtained on condition that the hot load for the heated component be constant, thermotechnical engineering scheme by which the service life for resistor component could be prolonged, was raised

    摘要以電阻爐中的電熱元件和被加熱元件為研究對象,經過簡化提出簡化模型,運用輻射換熱理論對其進行了熱工方面的理論計算和分析,在被加熱元件熱負荷一定的情況下,得出了影響電熱元件溫度的幾大要點,提出了延長電熱元件使用壽命的熱工技術方案。
  14. When constant wattager electric heating cable is installed, intercrossing and overlapping is not allowed to avoid overheating. otherwise use life will be impacted

    恆功率電熱帶安裝時不允許交叉、疊繞,以避免過熱,影響產品使用壽命。
  15. When human serum albumin was adsorbed on the surface of au electrode or c12sh modified au electrode, different conformations were resulted and the processes of binding vepesid were also different. the corresponding kinetic parameters were obtained by fitting the response curves. the values of heterogeneous standard charge transfer rate constant for fe ( cn ) 637 fe ( cn ) 64 were obtained from the cyclic voltanimograms and the electrochemical impedance spectroscopy, and the electric double layer capacitance was calculated from the impedance semicircle

    當在金電極及修飾了十二烷基硫醇的金電極表面吸附時, hsa以不同結合部位結合導致其吸附后的空間構象存在差異,在隨后的與足葉乙甙給合過程中表現出了不同的結合行為,並擬合了相應的動力學參數。
  16. Mechanical impact dynamics is used to analyse the production and spread of stress wave when hydraulic pile hammer hammerblows piles, the stress wave influence the course of driving pile. slender hammer that is equal to wave resistance of the pile can bring ideal stress waveform. when the hammer weight is constant, efficiency of driving pile can be increased by means of selecting drive cap and cushion pad of different rigidity to match the hammer according to various geological condition and the pile. the structure and principium of hydraulic system of double - acting hydraulic pile hammer with double cylinders is studied in detail in the paper, the hydraulic system and electric control system of six - ton - double - actin hydraulic pile hammer with double cylinder is designed on the basis of it

    本文應用沖擊機械繫統動力學分析打樁過程中錘體與樁撞擊時應力波的產生、傳播以及該波對沉樁過程的影響。認為與樁等波阻的細長狀錘體能夠產生理想的應力波波形;在樁錘重量一定的情況下,可針對不同的地質情況和樁,通過選擇不同剛度的樁帽和樁墊與其匹配來提高打樁效率。本文對雙缸雙作用液壓打樁錘液壓系統的結構和工作原理進行了深入的研究,並在此基礎上設計出六噸雙缸雙作用液壓打樁錘的液壓系統和電控系統。
  17. Featured by wide band gap, high breakage electric field, high electron mobility, low dielectric constant, strong irradiation proof and excellent chemical stability, silicon carbide ( sic ), viewed as one of the most promising wide band gap semiconductors, is widely utilized in optoelectronic devices, high frequency and large power, high temperature electronic devices

    被譽為最有潛力的寬禁帶半導體材料一sic ,因其具有禁帶寬度大、擊穿電場高、熱導率大、電子飽和漂移速度高、介電常數小、抗輻射能力強、良好的化學穩定性等優異的特性,被廣泛地應用於光電器件、高頻大功率、高溫電子器件。
  18. The equipment made by us of titanium, stainless steel, aluminum or plastics, mainly include column condenser ( heat exchanger ) ; coil hear exchanger ; membrane evaporator ; constant boil tower ; reactor ; pressure filter, storage tank ; blower, centrifuge and ta series corrosion - resist titanium pump, as well as variety of metal constructional member. they are widely applied in the industries of petrochmical engineering, smelt, pharmacy, chlorinate alkali, salt preparation, as well as electric chemical plant

    我廠生產鈦材,不銹鋼等各種材質的化工設備,主要有風機,離心機,鈦泵,鈦閥,列管式冷凝器(換熱器) ;盤管式換熱器;薄膜蒸發器;塔器;反應器;貯存容器;面向石油化工,冶煉,制藥,氯堿,制鹽食品,造紙,環保等化學工業領域及電化行業。
  19. In the mode using constant rate water pump, pumps are put to run atfull capacity in all operation cycles, with no means for water flow rateregulation attached, incurring significant waste of electric power

    高位水箱造價較高,並且需要增加樓房的設計強度,增加了投資成本。恆速泵打水總是滿負荷運轉,不能根據用水量的多少調整泵流量,因此浪費電能。
  20. The widely applications of nonlinear instruments have produced many high order harmonics, they are flowing into the power network and greatly influence the quality of electric power. and the frequency is n ' t constant but changed around 50hz

    電網中非線性設備的使用日益增多,所產生的高次諧波電流大量注入電力線路中,使得電網電壓、電流波形發生畸變,同時電網頻率並不是固定不變的,而是在50hz附近波動。
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