negative direction 中文意思是什麼

negative direction 解釋
反方向
  • negative : adj 1 否定的 否認的;拒絕的 (opp affirmative); 反對的 反面的;消極的。2 (opp positive) 【電...
  • direction : n. 1. 方位,方向;范圍,方面。2. 〈pl. 〉 指揮,指導;管理。3. 〈常 pl. 〉指示,命令,吩咐;用法說明。4. 導演;(樂隊)指揮。5. 寄發地址。6. 趨向,傾向。
  1. There is a north - north - east negative anomaly belt of aerial magnetism in the middle - east part of the basin, which could be displayed by the aerial magnetism of commutative field, upwardly continuation, lvt in earthquakes, the experimentation of granite liquation ( demagnetization ), the distribution of neozoic era volcanic rock, earthquake, hot spring and ground feature. the anomaly shows the blocking in east - west direction, and it is also associated with intense activity of deep heat interaction and the development of the crust - mantle mixed layer in the north qiangtang

    從區域航磁、向上延拓、地震低速層、花崗巖熔融(退磁)實驗、新生代火山巖的分佈、地震、溫泉、地貌等發現,盆地中東部存在一北北東向航磁負異常帶,既顯示出東西分塊,也與北羌塘深部熱力作用強烈活動、發育「殼幔混合層」有聯系。
  2. Dds951 series electronic single - phase electric meter is the most advanced static electronic meter in china. the meter designs use large - scale intergated circuit. high reliability step motor, it can the ac single - phase active energv voltage rating : 220v : frequency 50hz, positive and negative two directions and accumulates in one direction. the test singnal is isolated by phototransistor : it also has the function of anti - fraud, and indicates it s operation situation on flash light, so it could be managed very easy

    Dds951單相電子電能表,是金雀儀表公司開發的新型電度表。該產品是採用規模專用集成電路,高可靠性步進電機等先進技術製造的國內最新電能試題新產品,用來計量額定電壓為220v ,頻率為50hz的交流單相有功電能,該產品能夠精確計量正負兩方向的有功電能,且以同一個方向累計。
  3. The second, at the high frequency primary coil, when switch turn on with control signal ( the spwm pulse is modulated ), in the positive or negative semi - period of low frequency modulation signal, transformer coil with same direction voltage. the magnetic flux of transformer core will increase step by step. at the end, it leads to magnetic flux saturation

    二、在高頻變壓器原邊,當開關管接收控制信號脈沖列(經調制的spwm波列)導通時,在低頻調制信號的正半周或負半周內,施加在變壓器繞組上的是同一方向的電壓,變壓器磁芯中的磁通可能將級進地逐漸增加,導致磁芯飽和,造成磁偏或單向磁化,導致低頻電信號放大失真或由於很大的磁化電流而無法正常工作。
  4. The most achievement is that we firstly obtain the analytic accurate solution of the modal fields of the waveguide structure and find some available character : ( 1 ) the different uniaxial crystal materials have the different propagation properties ; ( 2 ) when the optical axis of the crystal is on the plane that is made up of the normal direction of the waveguide plane and the propagation, there are te mode and tm mode in this special waveguide, but the principal mode is different of the character of the uniaxial crystal, the principal mode is the principal mode of te mode for the negative uniaxial crystal, but the one of tm mode for the positive uniaxial crystal ; ( 3 ) when the crystal optical - axis parallel to the waveguide plane, for the positive uniaxial crystal material, the principal mode of the waveguide is a te wave, which can be excited by the light at any frequency ; when the light frequency satisfies a single mode propagation condition, there will be only the principal mode propagating in the waveguide, otherwise some of the higher order modes can be excited, which are neither te modes, nor tm modes, but the hybrid guided modes

    本文就是在此背景下,利用金屬波導和單軸晶體的一些特性,結合麥克斯韋方程組和波導的邊界條件,從三種不同的情況研究了光在對稱平面單軸晶體金屬波導(波導層是單軸晶體,兩個波導界面均為金屬)內的傳輸特性,其主要貢獻為,首次解析地得到了這種波導結構下模式場的精確解,並發現了一些有用的特性: ( 1 )模式場的性質因單軸晶體的性質不同而異; ( 2 )當單軸晶體光軸位於波導界面法方向與傳輸方向構成的平面內時,波導中傳輸te波和tm波,只不過其主模因單軸晶體的性質不同而異,當波導層介質為負單軸晶體時,波導主模是te波主模,而波導層介質為正單軸晶體時波導主模是tm波主模。 ( 3 )當單軸晶體光軸位於波導面內時,對于正單軸晶體,波導的主模是橫電波te _ 0模,任何頻率的光波均可激勵該模式;當光波波長滿足一定條件時,波導內傳輸單模,否則,將激勵起高階模式,高階模即匪te波,也匪tm波,而是兩者耦合而成的混合模。
  5. When the width of the foundation is smaller, the friction force is firstly increased from zero at the central area of the foundation, then decreased to zero at the edges of the foundation, hence there is a peak ; when the width of the foundation and the thickness of the soft ground is larger, the frication force is almost zero from the central area of the foundation to a certain distance, then increased, at last decreased to zero at the edges of the foundation, therefore there is a peak ; and when the width of the foundation is larger and the thickness of the soft ground is smaller, the friction force is firstly increased from zero at the central area of the foundation in the negative direction, then decreased to zero, so there is a negative peak, then increases in the positive direction, eventually decreased to zero at the edges of the foundation, hence there is a positive peak

    當基礎寬度較小時,從中心線為零處開始增加,達到峰值后,開始減小,直至基底邊緣處為零;當基礎寬度和軟土地基厚度較大時,從中心線處開始,向外側延伸一定距離,幾乎為零,然後開始增加,達到峰值后,開始減小,直至基底邊緣處為零;當基礎寬度較大,並且軟土地基厚度較小時,從中心線為零處開始反向增加,達到反向峰值后,然後反向減小,減小到零后,逐漸正向增加,達到峰值后,再逐漸減小,直至基底邊緣處為零。
  6. To simulate the flow direction of freight in crossing hinterland and forecast throughput of some newly built ports, probability model for transportation means is introduced and revised, and negative exponent probability model is established based on it

    摘要為了模擬港口重疊腹地貨運流向情況,並對新建港口吞吐量進行合理預測,引入了概率交通方式預測模型並對其進行改進,且在此基礎上建立了負指數貨運量概率預測模型。
  7. The optimal cp potential shifted to negative direction in seamud containing active srb, - 1030 mv ( vs. saturated cu / cuso4 electrode, cse ) or lower potential was needed. accordingly, the cp current density was about 11 ma / m2

    在srb存在下,最佳陰極保護電位移向更負的值, - 1030mv (相對銅/硫酸銅電極, cse )甚至更低的電位是需要的。在- 1030mvcse保護電位下,保護電流密度約為11ma / m2 。
  8. The key to prediction of casting shrinkage / porosity lies in ascertaining the critical value of temperature gradient and niyama criterion. the thesis put forward two methods to ascertain the value, one is which is positive - direction and the other is negative - direction. we verify the realistic arithmetic of temperature gradient method and niyama criterion method by experiment, and we can draw a conclusion that the arithmetic is correct and reasonable in most cases and choice of developing tool is sound

    臨界梯度值和新山判據臨界值的確定是實現縮孔縮松預測的關鍵,本文提出了確定臨界值的正向法和反向法,並以高鉻鑄鐵件縮孔縮松預測和鑄造工藝改進為研究對象,應用正向法,確定了溫度梯度法的臨界值為180 m 。
  9. At the present time the populace mentality tends to develop in the active and healthy direction, while we must attach importance to some negative aspects of the populace mentality

    現階段群眾心理態勢總體朝著積極健康的方向發展,但一些負面的群眾心理特徵不能不引起我們的重視。
  10. In addition, the present - day chinese leaders are trying hard to learn from both the positive and negative experiences gained from the history of world civilization, and so they are able to choose the scientific development route and they are sure to choose the sound direction of win together through peace

    而且,中國今天的領導集團也在努力吸取世界文明史中的正反兩方面的經驗,他們有能力選擇科學的發展道路,也必然會選擇「和平共贏」方向。
  11. The small inclusions - in aluminum alloy can be detected according to this rule. 2. the initial phase angle of the highest spectral line mushrooms with the growth of volume percentage of inclusions while forward direction, but it goes down while negative direction. 3

    正向檢測(沿軋制方向)時,最高譜線的初相角隨夾雜物體積百分數的增加而迅速增加;逆向檢測時,最高譜線的初相角隨夾雜物體積百分數的增加而迅速減小; 3
  12. Kurstaki strain hd73, were inserted into two copy sets of res sites. the res sites have same direction. when - the recombinant plasmid was introduced into crystal negative b. thuringiensis host bmb171, antibiotic resistance genes and other non - 5, thuringiensis dna can be selectively eliminated after the selection by antibiotic resistance marker

    將crylac10基因或壯觀黴素基因和蘇雲金芽胞桿菌的質粒復制起始區oril030連接在一起,置於兩個同向的解離區之間,再將基因操作中所必需的大腸桿菌質粒復制起始區和抗生素標記基因等與之相連構成解離載體。
  13. Based on the analysis about the test requirements and the saturated magnetization of the armor plate, the excitation magnetic circuit satisfying the testing condition and a validation system are designed. because the geometric, of the magnetic leakage at the direction of the normal of the roundness fault has the feature of two peaks : a positive and a negative, using the linear regression and the software matlab, two regression equation are proposed : one is about the peak value of the magnetic leakage and the diameter and depth of the roundness fault ; the other is the distance between the two peaks and the diameter of the roundness fault. the result of the validation system proves that the two equations are valid, and an applied method using for quantificationally inspecting the roundness faults is proposed according to the two equations

    根據實驗要求,通過對鋼板達到飽和磁化的必要性進行的分析,設計了符合試驗條件的勵磁磁路,並設計了一套實驗驗證系統;根據圓形缺陷法線分量漏磁場幾何圖形正負雙峰值的特點,採用線性回歸擬合的原理和matlab軟體及其統計工具箱中的相關函數,給出了圓形缺陷漏磁場幾何圖形的峰峰值與圓形缺陷的直徑和深度以及峰峰值間距與圓形缺陷直徑的兩個回歸擬合方程,並通過實驗驗證系統驗證了擬合方程的正確性,利用這兩個簡單實用的擬合方程,提出了一種工程定量檢測圓形缺陷的應用方案。
  14. The general direction and the target classification unfit the present day educational development ; the assessment index lacks scientific basis ; formalism overflows ; emphasizing the classroom teaching skills excessively ; overlooking the development of students and the pursue in the overall teaching goal, and the realization of it lacking monitor system. all the above mentioned problems are negative factors in the professional development of teachers, analyzing the problems and the teaching enthusiasm teaching efficiency and teaching development and putting for some suggestions in improvement in the teaching assessment of primary schools and middle schools

    指出,當前中小學教師教學評價實踐中存在的主要問題有,教師教學評價缺乏正確的導向;目標分類不符合素質教育和新課程改革的要求;評價指標缺乏科學依據;形式主義泛濫,過分注重教師的課堂教學技巧,忽視學生的發展及教師在教學中整體目標的追求與實現,缺乏監督機制不利於廣大教師的成長與專業發展。
  15. The terahertz emission, which is a second - order response, and the four - wave mixing signal, a third response, are given the expressions related to the lorentz local field factor l. we found a four - wave mixing signal in the direction 2k2 - k1 for the negative time delay, and the frequency of the four - wave mixing signal has a shift related to the lorentz local field factor l

    計算之後,我們給出太赫茲輻射與四波混頻信號關于lorentz局域場因子l的表達式,發現負時間延遲時在2k _ 2 ? k _ 1方向仍有四波混頻信號,其頻率也有所改變。
  16. Upon the whole, here was an undoubted testimony, that there was scarce any condition in the world so miserable, but there was something negative or something positive to be thankful for in it ; and let this stand as a direction from the experience of the most miserable of all conditions in this world, that we may always find in it something to comfort our selves from, and to set in the description of good and evil, on the credit side of the accompt

    但是,即使在這樣的處境中,也禍福相濟,有令人值得慶幸之處。我希望世上的人都能從我不幸的遭遇中取得經驗和教訓。那就是,在萬般不幸之中,可以把禍福利害一一加以比較,找出可以聊以自慰的事情,然後可以歸入賬目的"貸方金額"這一項。
  17. The frequency analysis results show conclusions as follows : 1. the relative valid spectral power is declined with the volume percentage of inclusions in terms of exponent curve and the tendency of negative direction is same to that of forward direction

    當ly12鋁合金細小夾雜物(小於0 . 16mm )的體積百分數從0 0 . 35時,在35 50mhz的頻帶范圍內,超聲波形的有效譜功率按近似指數曲線快速下降,沿相反方向檢測時其變換趨勢相同。
  18. The optical effect on the uniformity of mesfet threshold voltage is studied. results show that optical radiation enhances the drain - source current of the gaas mesfet, and makes the threshold voltage to move toward negative direction. optical radiation enhances the uniformity of mesfet threshold voltage

    本文研究了光照對閾值電壓均勻性的影響,觀察到在光照條件下,耗盡型mesfet的溝道電流增加,閾值電壓向負方向增加,光照提高了閾值電壓的均勻性。
  19. For the sample with the content of fe2o3 is 9 %, the maximum mr value of the composition ( lao9sroimno3 ) o9i ( fe2o3 ) oo9 increased in the negative direction, and get the maximum - 7 % at 337k ; with the content of feio increased, the mr of the composition increased also, when the content of fe2o3 is 17 %, the maximum mr value of the composition ( lao. gsro imno3 ) o. 83 ( feio o. n can reach - 30 % at 338k, where applied magnetic field is 1. 5t

    含量為9的樣品,樣品的磁電阻值在238k時隨溫度的升高而逐漸向負的方向增大,在337k時達到極值7 ;對于fe 。 oz含量為門的樣品,樣品的磁電阻值在265k時隨溫度的升高而逐漸增大,兩種不同比例的復合體系都在很寬的溫區內表現出較大的磁電阻,尤其後者,在1 st外場作用下, 338k時mr達到極值30 。
  20. Similarly if we point our thumb in the negative direction of the axis our fingers will curl in the negative direction of rotation

    同樣的,如果我們將自己的拇指朝向逆方向軸,我們的手指將收攏于逆旋轉反向。
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