負速度 的英文怎麼說

中文拼音 [fùsùdù]
負速度 英文
negative velocity
  • 負 : Ⅰ名詞1 （負擔） burden; load 2 （虧損） loss 3 （失敗） defeat Ⅱ動詞1 [書面語] （背） carry on th...
  • 速 : Ⅰ形容詞（迅速; 快） fast; rapid; quick; speedy Ⅱ名詞1 （速度） speed; velocity 2 （姓氏） a surna...
  • 度 : 度動詞[書面語] （推測; 估計） surmise; estimate
  • 速度 : 1. [物理學] velocity; speed; blast; bat 2. [音樂] tempo3. （快慢的程度） speed; rate; pace; tempo
  1. If the velocity of atoms is near to zero, the light for ces will tend to confine the atoms near to nodes and antinodes. the stability depends on the magnitude of the negative slope of the light force, the depth of the potential well and the momentum diffusion coefficient. it is important to select the parameters, e. g

    如果通過激光冷卻能使原子速度降至很小甚至為零，光壓力的作用將使原子被較穩定地囚禁于激光駐波場的節點和反節點處，其穩定程度取決于該處光壓力曲線負斜率的大小、對應勢能的勢阱深度以及動量擴散系數的大小，因此，如何在實驗中合理選擇激光強度、失諧量等顯得尤為關鍵。
  2. The relationship between velocity and extern load for the two cooperative behaviors are calculated based on the energy conservation

    並且分別計算了這兩種協作行為得出的肌肉所負荷外力與收縮速度的關系。
  3. In the research, a set of simulation equipment is developed to examine the drivers " static and dynamic fatigue. recur to the apparatus, contrast and control experiment are made among different ages, workload intension and workload factors group. the endings summarize as following : ( 1 ) driving sensation fatigue investigation ( investigation of psychological and physiologic index and contrast investigation of fatigue ) ; continuous driving load and discrete driving load investigation of fatigue

    ? ?門）駕駛疲勞平衡穩定性是通過在力檢測臺上描繪人體重心軌跡的方法，提出檢測駕駛員疲勞平衡穩定指數，在不同狀態下（傾斜度15 30 『以及閉目等狀態下）對不同負荷、不同年齡分別進行測試，建立駕駛疲勞客觀測試評價體系； n ）經實驗室研究與現場調查，通過對駕駛疲勞與駕駛時間、駕駛速度等關系的研究，提出了不同年齡、不同條件下的最大連續安全駕駛時間標準，日駕駛時間標準，最大安全行車速度標準等。
  4. She offers an outstanding range of machinery in the granite and marble processing cycle, including gang saws ang slab polishing lines. in the past years, she held and reached the change of industrial structure. the pioneering technology and the hope of customer are always reflected in the producs with the quickest speed. shengda products shared chinese market and worked well in many cuntries such as italy, usa, australia, turkey, thailand, etc. she is perfecting selling and service networks in allover the wold, shengda allows the customers to keep down the manufacturing costs to better environing conditions and to reach the top quality standard suitable for market requirements

    在科技研發方面，公司以博士後作為負責人，構建了一個由多名高科工程師工程師組成的研發團隊，使公司技術始終領先同行，形成生產技術上的優勢，通過技術改造產品開發技術攻關技術引進，以最快的速度將最新的石材加工技術和客戶的需求反應到產品生產中，使技術和設備走在同行的前端，產品保持國內外同行先進水平，出口到義大利美國澳大利亞韓國和泰國等幾十個國家，受到了石材加工業者的青睞。
  5. Negative group velocity in the band gap range

    禁帶區域內負的群速度
  6. Set the shutter by pressing and holding the exposure - compensation button, which also bears a small time value ( tv ) label, and turn the up / down dial until the desired speed, in numeric half steps, appears in the viewfinder or lcd

    按住曝光補償鍵+ / - ，它也肩負著tv功能，調節主控撥盤直到需要的速度，速度以1 / 2級調節並在取景器或lcd屏中出現。
  7. It was charged with responsibility for getting defense production into high gear.

    它負有使國防生產高速度進行的責任。
  8. The key fruits is as follows : 1 in the image - preprocessing, the optimal edge - extraction algorithm was used to increase the correlation s / n and auto - thresholding technique was introduced to decrease the affection of illumination distortion on the recognition possibility, and the bottle - neck of image - preprocessing was delivered to the dsp which is on the genesis card instead of cpu

    論文的重點內容如下： 1 、在預處理圖像中，優選了邊緣檢測演算法，並引入自動門限，還將預處理的速度瓶頸交給了圖像卡上的dsp ，這樣不僅提高了s n ，而且也提高了對不同光強的適應能力，還防止了速度瓶頸、減輕了cpu的負擔。
  9. The actual delays depend on line speed and system load

    真正的延遲時間依賴于線路的速度和當時的系統負載。
  10. There has been a revolutionary advance in ultrashort pulse technology since the discovery of self - mode locking of ti : sapphire lasers. few - femtosecond pulses have already been generated from ti : sapphire lasers, by means of combining self - phase modulation with negative group velocity dispersion, which is similar to the way of soliton generation

    鈦寶石激光自鎖模的發現使得超短脈沖技術發生了革命性的變化，利用自相位調制和負群速度色散結合的類孤子產生方式，人們已經在鈦寶石鎖模激光器上得到了脈寬只有幾個飛秒的光脈沖。
  11. The negative sign describes the fact that this is always opposite to the velocity.

    這個負號表示這個力總是和速度的方向相反。
  12. However, the overabundance of old and new information, and rapid emergence of web - based search engines have generated a great amount of redundant search results and affected the efficiency and accuracy in terms of users " search efforts

    然而，新舊信息的交織和網路檢索工具的層出不窮，導致了用戶檢索出大量冗餘信息，也增加了用戶識別信息的負擔，更影響了用戶的信息查準率和檢索速度。
  13. In the positioning servo - system, which generally is configured by the d. c. pulse width modulator ( pwm ) velocity governing system and position servo - loop, the parameter perturbance of pwm velocity loop really exist by reason of such as the load behavior ; power voltage supply ; operating setting value, etc. 1, 2 ， and it cannot be ignored. by using the identification technique to form the mathematical model of the system, authors have confirmed the facts. therefore, to design the discrete sliding mode controller ( dsmc ) of the positioning servo - system, the perturbed parameters value bounds of the pwm velocity loop, which is as the controlled plant of position servo - loop, should be accounted. consequently, the design principle of dsmc for accounting system with parameter perturbance is proposed by the authors. the proposed method can ensure the stability of system with parameter perturbance and the behavior of non - overshoot, fast precise positioning. in order to reveal the effects of the design method, the comparative research work is done by the authors. also, it has been tested in an industrial experiment, the results proved it is satisfactory

    由直流脈寬調速系統（ pwm ）和位置環構成的定位系統中，速度環的參數隨負載特性；電網電壓；給定工況而攝動是不容忽視的.作者通過系統辨識建模也證實了這一事實1 ， 2 .因此在設計位置環的離散滑模控制時，必須針對速度環（即位置環的控制對象）的參數攝動范圍採用「對象參數攝動離散滑模控制器的設計方法」 ，以確保系統在參數攝動時的穩定性和快速、無超調、準確定位的優良動態品質.為剖析該設計方法的控制效果，本文作了對比性研究，並將該設計方法用於工業試驗中，取得了滿意的結果
  14. The radial velocity profile of the liquid is dependent on the superficial air velocity and the column height, and flows from the wall to the center at bottom of the column

    徑向液相速度既與氣相折算速度有關又與位置高度有關，在塔底部呈現負值，這意味著向塔軸心方向流動。
  15. At linear stage, the theoretical growth rate for the rt instability in cylindrical and spherical geometries was enhanced ( or reduced ) due to the decrease ( or increase ) in the perturbation wavelength during an implosion ( or explosion ). even in the absence of an acceleration the perturbation could grow in the convergent geometries. the amplitude growth rate was proportional to the cube of the convergent ratio in spherical geometry and to the square of the convergent ratio in cylindrical geometry

    在線性階段，已有的研究表明：一方面，在內爆（或外爆）過程中擾動波長變短（或變長） ，使得不穩定性的增長率變大（或變小） ；另一方面，即使不存在界面加速度，界面運動仍然可能導致擾動幅度的增加，柱幾何中擾動幅度的變化速率正比于界面收縮比的平方，球幾何中擾動幅度的變化速率正比于界面收縮比的三次方，並且擾動幅度的變化方式（增加或減少）只與初始時刻擾動幅度的增長速率（正或負）有關，而與界面的運動方向（向內或向外）無關。
  16. As payload disturbances acting on the two motors ca n ' t be noncoincidental, the motor speeds change with the payloads of two motors, and cause position asynchronies

    由於作用在兩臺電機上的負載不可能嚴格相同，所以當兩臺電機上的負載處于動態變化過程時，便引起了電機速度發生變化，從而引起位置不同步。
  17. They are the wind instrument, plucked string instrument, bowed string instrument and percussion instrument. the wind, and strings are used in passionate scenes

    敲擊樂器屬武場，負責配合動作、連接唱腔及確定速度，行內稱為鑼查。
  18. 2. 31 it should be noted that the high usage of the rail system and related capacity deficiencies is primarily a function of the very low bus speeds that will occur under this scenario, since the road speeds reported above also will severely reduce bus speeds

    2 . 31要特別一提的是，在既定策略方案下，由於路面的行車速度將會下降，巴士的行車速度會極低，鐵路系統將出現高使用量以及連帶的不勝負荷情況。
  19. Special features for copying inputting originals auto paper select, auto scaling select, vertical horizontal independent anemographic magnification, final scale adjustment, copy density adjustment 7 degrees, scan start position adjustment, and copy position adjustment, top bottom bottom margin setting, mirror image, trimming, negative positive inversion, header, reference input, rotate image, sharpness, contrast, additional copy, scanning speed change

    自動用紙選擇，自動倍率選擇，縱向或橫向獨立縮放，倍率微調，復印濃度調整，掃描起始位置選擇，復印位置選擇，前後端空白選擇，消除框線，鏡像，正負片反轉，頁眉，參照列印，畫面偏轉，明兩度，對比度，追加復印，掃描速度選擇，電子分頁可選配置
  20. 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。
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