脈沖速率 的英文怎麼說

中文拼音 [màichōngsùlǜ]
脈沖速率 英文
impulse rate
  • 脈 : 脈名詞1. （動脈和靜脈的統稱） arteries and veins2. （脈搏的簡稱） pulse 3. （像血管的組織; 連貫成系統的東西） vein
  • 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...
  • 率 : 率名詞（比值） rate; ratio; proportion
  • 速率 : speed; rate; tempo
  1. Based on 2m contour of surveyed bathymetry from 1976 to 1999 and mean - high - tidal line distracted from remote sensing images acquired by landsat - 5 tm from 1976 to 2000 respectively, quantitative analysis about alluvion and erosion as well as the relationship between accretion of modern yellow river delta and the water and sediment discharge of yellow river is made, and the results indicate the mean - high - tidal level is more effective than 2m contour of the bathymetry. it is found that the accretion of modem yellow river delta is becoming less and less, what ' s more, erosion is even more than alluvion in some recent years. diaokou promontory has been eroded seriously since yellow river changed its course in1976

    以一般高潮線反映現代黃河三角洲沖淤演變時，從1976年黃河改道清水溝流路入海到2000年，整個黃洞三角洲凈造陸201 . 5km ~ 2 ，淤積有逐漸變慢的趨勢，甚至出現凈蝕退的年份；刁口河嘴大量蝕退，蝕退速率開始快速，后來逐漸變慢；清水溝河嘴大量淤積，淤積速率開始迅速，后來逐漸變慢，甚至出現凈蝕退；清水溝河嘴南側到支脈溝一段岸線與刁口河嘴以西到灣灣溝一段岸線基本穩定。
  2. The rate at which pulses can be sent and received on copper wires is called frequency.

    脈沖通過銅線送出和接收的速度稱為頻率。
  3. For electrodeposition by dc methods, the metals deposite uninterrupted and the particles were also embeded uninterrupted into the coatings ; for electrodeposition by pc method, the particles with biggish volume were desorbed from the coatings and returned to the electrolyte again owing to the presence of pulse interval ; for electrodeposition by prc method, the particles carried positive charges are much more easy to desorb from the coatings owing to the effecf of reverse pulse current combined with pulse interval, in addition, the reverse pulse current also could dissovle the metals, further accelerates the desorption of particles, thus the particles size embeded in the coatings by prc method is the least

    直流電沉積時，基質金屬的沉積連續進行，粒子在電極表面不間斷嵌入鍍層;單脈沖電沉積由於脈沖間歇的存在使得具有較大體積的粒子會脫附，重新回到溶液中;採用周期換向脈沖時，反向脈沖電流使表面荷正電的較大的粒子更易從電極表面脫附，同時，反向脈沖電流對基質金屬的溶解作用，也會促進粒子的脫附，因此鍍層中復合粒子尺寸最小。隨著鍍層中粒子復合量的增加，三種鍍層的晶粒都明顯細化，說明al _ 2o _ 3的存在阻止了晶粒的長大，提高了電沉積過程中晶核的形成速率。
  4. Interferogram region spreading technology based on exemplar matching

    衍射效率延遲速率對脈沖特性的影響
  5. The technology of high power constant current charging, high voltage heavy current discharging switch, high speed and high voltage pulse generator, precision synchronization delay, auto control and so on are concretely introduced in this paper

    具體研究了大功率恆流充電技術、高壓大電流放電開關、高速高壓脈沖發生器、高精度延時同步技術及系統自動控制技術。
  6. In fact, it is common practice to express the pulsar slowdown as the period divided by the period change per year.

    事實上，人們通常用周期與周期年變率之比來表示脈沖星的減速。
  7. The discriminator circuit is mainly composed of an integrated voltage comparator, max921, and owns the characters of very low - power and low operating voltage

    該甄別器具有微功耗、低工作電壓的特點，適宜於輸入脈沖速率要求不太高的電路。
  8. With the development of the converter drive technology, the requirement for the variable frequency drive are becoming more and more strict especially for the modern converter drive employing fast switching semiconductor igbt ， though it has high pulse frequency and refreshing time of only nanoseconds, it generates emf that has adverse effect on the environment

    隨著頻率控制傳動技術的發展，對頻率變速傳動系統的要求越來越高，尤其是對採用快速切換的igbt半導體現代變頻技術，盡管脈沖頻率高或更斷時間僅毫微秒內，但它們會對周圍環境產生電磁場。
  9. The interface utilizes the high - speed pu lse function of plc basic unit to realize the control frequency of pulse, pwm regulate voltage and to make use of drivers of step motor control step motor

    利用plc主機模塊的高速脈沖輸出功能，控制脈沖頻率的發生、 pwm脈寬電壓的調節，並通過步進電機驅動器實現對步進電機高效控制。
  10. Then the nonlinear reverse saturable absorption measurements of composite materials were performed with a frequency - doubled q switched nd : yag laser with 8ns laser pulse at 532nm. the factors that affect the performance of reverse saturable absorption and optical limiting of the materials were discussed. a phenomenological model is used to describe optical limiting phenomena

    用波長為532nm的yag倍頻調q脈沖激光以8ns的脈沖速率測試復合材料的反飽和吸收的光限幅特性，討論了各種因素對材料的三階非線性光學性質及反飽和吸收光限幅特性的影響，並對它們的反飽和吸收的光限幅現象進行了理論擬合。
  11. Surface flashover across the insulators in vacuum is the major limitation of the performance of the high power system, such as high power microwave tube, pulse power switch, high - energy linear accelerator, etc. flashover studies are of considerable importance in many applications. alumina ceramics are used widely in vacuum insulation system. the flashover and charging performance have been systematically investigated on alumina ceramics in vacuum under pulse voltage ( 0. 7 / 4 ^ 8 )

    真空中絕緣子沿面閃絡現象是制約高功率微波管、脈沖功率開關、高能粒子加速器等系統性能的主要原因，這是因為真空中絕緣子在一個比自身及相同真空間隙擊穿電場低得多的電場下就發生了表面閃絡的緣故，研究真空中絕緣子沿面閃絡現象及其形成機理對于改善和提高系統性能有重要意義。
  12. The comparison of the calculation formula for unsteady jet flow with that of steady jet flow demonstrates that the pulse frequency is the main factor influencing the velocity coefficients 2 and 5, and the relationship between the velocity coefficients of pulsed jet flow and steady jet flow was revealed

    通過與恆定射流的流速系數計算式對比，闡明了脈沖頻率是影響2和5的主要因素，溝通了脈沖射流與恆定射流流速系數之間的關系。
  13. As for high - energy linear induction accelerator, miniaturizing pulse - forming line ( pfl ) is helpful to minify the size of the massive pulsed power system. at the same time, wealth and space could be economized

    同時脈沖形成線小型化對於一臺大型直線感應加速器來說，不僅有利於減小其龐大的脈沖功率系統，而且節省了大量的財力資源和空間體積。
  14. To ensure the precision of distance measuring, the high - speed laser driving circuit and the detect - amplifying circuit constituted by two class high - speed operational amplifiers are used in auto adaptive cruise - control system, and the laser flying time is measured by a sixteen bit ' s binary counter, whose counting frequency is 100 megahertz

    為保障測距精度，裝置採用高速激光器驅動電路和由兩級高速運算放大器構成的探測放大電路，並用一個計數脈沖頻率為100mhz的16位二進制計數器完成激光收發間隔時間的測量。
  15. Further, the characteristics such as the response speed, the efficiency and the relationship between load and the modulation factor are counted and analyzed. during the stage of circuit design, the whole chip and the sub - block circuits are well - designed, respectively

    基於此模型，計算並分析了離散脈沖頻率調制下升壓型dc / dc變換器的響應速度、效率和負載與調制度的關系等特性。
  16. High - power pulse transformer has excellent performances in high power capacity 、 small bulk and simple structure. so it opens up extensive applications in the pulse power fields. the transformer system with storage capacities is often used in intense electron beam accelerator to substitute traditional marx generator

    脈沖變壓器具有功率容量大、體積小、結構簡單等特點，在脈沖功率領域，常用電容器放電並通過脈沖變壓器升壓來代替marx發生器給加速器的形成線充電[ 1 ] [ 2 ] 。
  17. After adjustment for age, height, mean arterial pressure, and heart rate, aortic augmentation index correlated independently with the presence of migraine, the researchers note, but aortic pulse wave velocity did not

    研究人員指出，在年齡、身高、平均動脈壓、心率調整以後，主動脈增加指數只和偏頭痛病人相關，但是脈沖速度沒有增加。
  18. Testing concrete - determination of ultrasonic pulse velocity

    試驗混凝土.超聲波脈沖速率的測定
  19. Testing concrete - part 4 : determination of ultrasonic pulse velocity

    試驗混凝土.第4部分:超聲波脈沖速率的測定
  20. Testing concrete in structures - part 4 : determination of ultrasonic pulse velocity ; german version en 12504 - 4 : 2004

    結構中的混凝土試驗.第4部分:超音波脈沖速率的測定
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