電阻常數 的英文怎麼說
中文拼音 [diànzǔchángshǔ]
電阻常數
英文
resistance constant-
For this purpos, from the point of the log geology, aimed at the actuality of the current fractured reservoir log geology interpretation and evaluation, based on synthetical analysis of the current domestic and foreign fruit of fractal dimension investigation of reservoir fracture, using the method and technique of fractal dimension, through the further discussion of the fractal dimension characteristics of m index and n index in the log interpretation archie model in a sample way and through the theoretic reasoning to the fractal dimension dfa and m index of fractured reservoir interval ' s log curve, according to the geophysical signification of the fractal dimension dfa of fractured reservoir interval ' s log curve shape : the more complicated the change of the curve shape is, the larger the its dfa value is, then the more complicated space structure of fracture and pore, then the higher value of m index of space structure of fracture and pore, and so on, the text propounds an improved method, based on box dimension, of covering log curve with scale grid, and by programming computes the dfa and its m index value of fractured reservoir interval ' s log curve, for instance, ac and rt curve, ect, then further puts this technique into application investigation, and makes analysis of application effects in the reservoirs located in l area of qx oil field from three aspects : 1. the dfa and its m index value of fractured reservoir interval ' s log curve, for instance, ac and rt curve, ect, which are derived from computing, is used to identify reservoir type by crossplotting m index with the product df _ acrt of fractal dimension of acoustical wave log curve and restivity log curve and by experiential discriminance plate of reservoir type in l area of qx oil field
因此，對該區裂縫性儲集層的類型識別、孔滲特徵的測井地質解釋以及儲層裂縫的發育和分佈規律進行深入的研究便成為本文研究的出發點。為此，本文從測井地質的角度，針對當前裂縫性儲層測井地質解釋與評價的現狀，在綜合分析當前國內外儲層裂縫的分形分維研究成果的基礎上，利用分形分維方法和技術，通過對archie測井解釋模型中的m指數、 n指數的分形分維特性的深入淺出的論述以及裂縫性儲層段測井曲線分維d _ （ fa ）與m指數的理論推導，根據裂縫性儲層測井曲線形態分維值的地球物理意義? ?曲線變化越復雜，則其分維值d _ （ fa ）越大、裂縫孔隙空間結構越復雜、裂縫孔隙空間結構指數m值越高等特徵，提出了改進的基於盒維數的測井曲線網格覆蓋法，編程計算了裂縫性儲層段常規測井曲線（如聲波和電阻率曲線）上分形分維值及其m指數值，進而從以下三個方面對qx油田l區塊的裂縫油藏進行應用研究，效果十分理想： 1將計算得到的可變的m指數與聲波和電阻率分維之積df _ acrt進行交繪，採用儲層分維值分類技術統計分析這些參數變化的規律，並結合qx油田l區塊儲層類型經驗判別圖版，從而實現qx油田l區塊下白堊統的裂縫性儲層的類型識別。In this thesis, the author analyses the deficiency in detecting and controlling function of the computer detecting and controlling system utilized in present transforming station. the strategy of design of software on operation and direction of 5 00kv transformer station is presented. it points out that we can deduce the mathematic analytical formula using the current, voltage and power of two terminals of transmission line as input. on this basis, we do realtime calculation of 500kv transmission line ' s parameter. we can also deduce the linear analytical formula of three - winding autotransformer ' s resistence using its current, voltage and power as input. the corresponding software is programmed on this basis
論文提出以輸電線路本端和對端電流、電壓、功率作為輸入量，導出了超高壓長線的波阻抗和傳播常數的數學解析式，在此基礎上進行了500kv輸電線路實時參數計算；提出以三繞組自耦變壓器的電流、電壓、功率為輸入量，導出了自耦變壓器繞組的電阻、電抗的線性解析式並進而對變壓器的實時參數進行計算；在此基礎上編制了相應的軟體。The resistivity is then constant and ohm's law is obeyed.
因此電阻率也是常數，並遵循歐姆定律。Using the advanced technology by its head office ( newkey co., ltd. ), it produces various kinds of alumina black and white ceramic products. the component alumina ceramics, which are widely used in electron components, devices, electrical products, enjoy low loss of high frequency, high insulating strength, good specific volume resistance, small dielectric constant, high mechanical intensity and excellent airtightness and thermal and chemical stability
本公司根據目前市場需求，生產出各種型號的黑、白陶瓷產品，廣泛應用於電子、電工、化學工業、紡織工業、水暖、宇航、環保等諸多方面，系列產品有高頻損耗少，比體積電阻大，介電常數小，強度高，氣密性、熱穩定性、化學穩定性好等特點。We frequently need a formula which will give the number of watts of power when we know the current and the resistance.
我們常常需要一個已知電流和電阻時求功率瓦特數的分式。Effect of glass agent on the characteristic constants of thick film ntc thermistor
熱敏電阻器材料特徵常數的影響The safety of transmission line plays a important role in power system safety it is not only the requirement of ensure supply power reliability, but also the necessary precondition of enhance power system stabilization, to remove faulty line quickly and accurately, also keep non - faulty line continuous work when some transmission line faults current differential protection is a kind of simple, reliable and good - selective protection manner to any variety of transmission lines, power system development needs current differential protection apply to transmission lines, moreover the advancement of electric and communication technology enable current differential protection apply to transmission lines firstly, the paper discusses, analyses the research and application transmission line protection in detail, compare the principle and realistic presupposition of general line pilot protections secondly, because conventional current vector differential protection are influenced easily by load current and transitional resistance, in order to at the same time quicken protection act, the principle and criterion include work characteristic of differential protect based on fault component sampled values are studied, results shows that differential protect based on fault component sampled values excels general vector current differential protection in reliability, sensitivity and anti - saturation of current transformer in addition, synchronous current sampling methods at all terminals of line is analyzed and estimated lastly, the principle and criterion. also device design about current sampling values differential protection based on optical fiber communication, which apply to short transmission lines are concretely investigated,
基於基爾霍夫定律的電流差動保護無論對於何種形式的輸電線路都是一種簡單、可靠、選擇性強的保護形式，電力系統的發展使得電流差動保護應用於線路保護成為需要，而電子、通信技術的發展使得電流差動保護應用於輸電線路成為可能。首先，本文對目前線路保護的研究和實際應用情況進行了討論和分析，比較了常用線路縱聯保護的實現原理和實現條件及優缺點。其次，針對常規相量電流差動保護易受正常負荷電流和故障過渡電阻影響的缺點，同時為加快差動保護的動作速度，對基於故障分量瞬時采樣值電流差動保護的原理、判據、動作特性等作了討論和分析，結果表明基於故障分量瞬時采樣值電流差動保護在可靠性、靈敏度、抗電流互感器飽和方面明顯優于常規相量電流差動保護，對電流差動保護各端的同步采樣方法和數據通信也進行了分析和評價。Based on it the electromagnetic response under different depths of the 3 dimensional geologic body with different resistivities, magnetic conductivities and dielectric constants is simulated
據此，可模擬計算任意具有不同電阻率、磁導率和介電常數的三維地質體在不同深度條件下的電磁響應。Insulaion resistance constant
絕緣電阻常數This paper gives a method to measure the conductivity base on choosing frequency. after adding to the electrode with two ac square waves of appropriate frequencies, we can measure the output dc voltage of the circuit
本論文提出了一種選頻電導率測量方法，選擇兩個合適頻率的交流方波施加於電極，測出電路輸出直流電壓，通過解方程組求出時間常數，然後求得溶液電阻，進而得到溶液電導率。And the permittivity and dissipation factor on si substrate were 342 and 0. 05 respectively
在低阻si上制備的bst薄膜介電常數為342 ，介電損耗為0 . 05 。Magnetron sputtering is common method for preparating metal film resistor. by this method, the target is very important for the performance of the resistor
在金屬膜電阻器的生產過程中，靶材是非常關鍵的，它制約著金屬膜電阻器的精度、可靠性、電阻溫度系數等性能。Remember the following words and expressions : e. g. multimeter ； circuit ， current ； voltage ； resistance ； digital multimeter ； analogue multimeter ； analogue multimeter scales ； zero adjustment control ； zero adjustment control for resistance ranges ； measurement ranges switch ； transistor test socket ； meter probe ； positive terminal ； negative terminal ； anode ； cathode ； red lead ； black lead ； power supply ； connect in parallel ； connect in series
記住萬用表、電路、電流、電壓、電阻、數字萬用表、模擬萬用表、表頭、機械零位調整器、歐姆零位調整器、量程選擇開關、晶體管插孔、表棒、正接線端、負接線端、陽極、陰極、紅導線、黑導線、電源、並聯、串聯等常用英文單詞，並逐步掌握。The charge and discharge performances of different composites were studied by the charge and discharge ; the structures of composites were characterized by sem ; the electrochemical properties of sulfur positive materials were characterized by cyclic voltammetry and eis. we studied the charge process, discharge process, charge - discharge efficiency, self heat, and self - discharge of lithium - sulfur system on system shuttle constant, conduct the mechanism of these processes and simply analyse them
以充放電技術研究了不同類別復合正極的充放電性能;以掃描電鏡技術觀測了復合正極的表面形貌;以循環伏安技術和交流阻抗技術研究了復合正極電極的電化學性能;並初步探討了鋰-硫電池體系中充電過程、放電過程、充放電效率、自熱和自放電等對體系飛梭常數的影響，推導了這些過程的機理並簡要的進行了分析。The calculation program using the matlab has been worked out to get the numerical solutions of the proposed models. the experiment has first been conducted in the laboratory to get the fundamentals thermal and moisture properties ( such as materials density, specific heat capacity and thermal conductivity ) and also the material moisture absorption isotherms of adobe building materials. the methods of measuring the surface mass transfer coefficient and material moisture content have been proposed
首次對生土建築材料物性參數進行了實驗測試，得到了常用生土建築材料的密度、比熱和導熱系數等參數值，得到了生土建築圍護結構的等溫吸濕平衡曲線的擬合函數關系式；此外，研究了生土建築圍護結構表面質交換系數實驗測定方法，探索了利用電阻率測量生土建築圍護的安窪築科技人學博十學位論文結構內部含濕量的測試方法。Based on the digital simulation and model analysis, the anomaly characterization of apparent resistivity section obtained by the sounding at different positions, and the relationship between electrode space and exploration depth were summarized
根據理論模型的數值模擬結果，總結了地質異常體在不同觀測方位巷道電測深視電阻率斷面圖上的異常特徵及電極距與探測距離間的關系。Srtio _ 3 ( sto ) thin films exhibit a large electric field dependence of dielectric permittivity. the microwave surface resistance of yba2cu3o7 - x ( ybco ) is much lower than that of the normal conductor. the typical value of rs for ybco epitaxial thin film is smaller than 1 m
在低溫下， srtio _ 3 （簡寫為sto ）薄膜具有強烈的非線性介電性質，即:介電常數隨外加直流電場變化而變化; yba2cu3o7 - x （簡寫為ybco ）具有極低的微波表面電阻， rs （ 10ghz ， 77k ） < 1m ，而且它們的晶體結構相似，晶格常數匹配以及化學性質相容。The more common electrical properties include : 1 ) electrical resistivity and conductivity, and 2 ) the relative dielectric constant, which relates the accumulated charge across and insulator to the electric field
常見的電學性能包括： （ 1 ）電阻率和電導率，和（ 2 ）相對介電常數，即積累電荷和絕緣體向電場之間的關系。Standard test method for temperature - resistance constants of sheet materials for shunts and precision resistors
分流器與精密電阻器用薄板材料的溫度電阻常數的標準測試方法Standard test method for temperature - resistance constants of alloy wires for precision resistors
精密電阻器用合金絲的溫度-電阻常數的標準測試方法分享友人