欠頻 的英文怎麼說

中文拼音 [qiànbīn]
欠頻 英文
under-frequency
  • 欠 : 動詞1 （睏倦時張口出氣） yawn 2 （身體一部分稍微向上移動） raise slightly （a part of the body） ...
  • 頻 : Ⅰ形容詞（次數多） frequent Ⅱ副詞（屢次） frequently; repeatedly Ⅲ名詞1 [物理學] （物體每秒鐘振動...
  1. The frequency and intensity of yawning began to decrease 5 days after fluoxetine discontinuation

    百憂解停藥5天後呵欠的頻率和強度開始減少。
  2. The 1mhz fixed frequency switching allows for tiny external components and the regulation scheme is optimized to ensure low emi and low input ripple. an external resistor sets the full - scale led current, while two digital inputs control on / off and select amongst three levels of brightness. the circuit operates in 1x mode until just above dropout

    工作在1mhz固定頻率，採用線性調制模式使輸入紋波大大減小;利用一個外部電阻可以設置滿量程led電流;外接兩個數字信號控制晶元開關並選擇led三級亮度中的一級;具有過溫、過壓/欠壓等保護功能，工作溫度范圍為- 40 + 85 。
  3. It points out that the uwb signal can be reconnoitered efficiently with sub - sampling method. 3

    說明了利用欠采樣方法對超寬帶線性調頻信號偵察的可行性。
  4. A doa estimation algorithm for coherent signal based on the fourth - order cumulant

    時空欠采樣寬頻段信號頻率和二維角估計方法
  5. Undermentioned frequency is each age paragraph optimal number, exceed or under this data person all belong to owe beautiful : 20 years old of minutely optimal ventilatory frequency ( breathe out whiff is ) it is 18 20 times ; 30 years old are 15 18 times ; 40 years old are 10 15 times ; 50 years old are 8 10 times ; 60 years old are 5 10 times

    下述頻率為各年齡段的最佳數，超過或低於該數據者均屬欠佳： 20歲每分鐘最佳呼吸頻率（一呼一吸為一次）為18 20次； 30歲為15 18次； 40歲為10 15次； 50歲為8 10次； 60歲為5 10次。
  6. The signal sampling circuit fulfill the tasks of sampling signal and changing the double polarities signal to the single polarity signal ; the drive circuit receives the pwm signals from dsp and pass the signals to ipm through optical - couple devices ; the protective circuit safeguard the system against high current, high voltage, low voltage and high temperature on the ipm model

    其中信號處理電路主要完成採集輸出電流和中間直流環節電壓信號，並對採集到的電流信號進行極性變換處理的功能；驅動電路接收dsp輸出的高頻驅動信號，通過耦合器件直接驅動ipm模塊；保護電路利用採集到電氣信號對整個系統實施保護，包括過電流、過電壓、欠電壓、 ipm模塊過熱等。
  7. The basic resonance frequncy of unsaturated soil is less than that of saturated soil or one - phase soil

    欠飽和土使沉積盆地的基本共振頻率減小。
  8. Uniform undersampling technique of bandpass signal and its engineering application in software digital if receiver

    帶通欠采樣技術及在數字中頻軟體接收機中的工程應用
  9. They will also get special financing from industrialised states to help to adapt to the threats of rising seas, more frequent extreme weather events, falling crop yields and increased migration

    同時，發展中國家還將從發達工業國家獲得資助，以幫助他們應對海平面上升、頻發的惡劣天氣、因災害而欠收的糧食和不斷增加的外來人口等一系列問題。
  10. The chip is mainly applied to the portable electronic products with the following features : 2. 7v to 5. 5v input voltage range ; the 1mhz fixed frequency ; - 40 to + 85 operating temperature ; two digital inputs control on / off and select amongst three levels of brightness ; thermal shutdown and under voltage shutdown protection, low 0. 1 a shutdown current ; soft - start limits inrush current

    該晶元主要應用於便攜式電子產品，其輸入電壓范圍為2 . 7 5 . 5v ，工作頻率為固定的1mhz ，可大幅度降低輸入紋波和emi輻射，工作溫度范圍為- 40 + 85 ，可使用外部使能控制信號調節led亮度及控制晶元關斷與否，具有過溫保護和輸入欠壓關斷保護功能，完全關斷模式下關斷電流可低至0 . 1 a ，具有軟啟動功能以限制啟動時的浪涌電流。
  11. Abstract : the system composed of intelligent control modules for three - phase induction motors is introduced in this paper. this module can conduct starting, reverse braking, and reverse conrtol with current limiting resistance. besides, it can also detect low voltage, overload, and open circuit of 1 or 2 phases, and do protection according to the detection. it especially fits to the controlling of motors which often do starting, braking and reversing

    文摘:介紹了一種智能三相電機控制模塊組成的系統，能在串電阻（電抗）起動、反接制動和換向控制的基礎上進行欠壓檢測、過載檢測、斷相檢測及電機故障保護.尤其適用於起動、制動和換向控制頻繁的電機控制場合
  12. This unit is particularly designed for monitoring 400v feeder with backup automatic switch. it could accurately measure and calculate : voltage, current, frequency, active power, reactive power, power factor and energy. when bus gets into trouble, it can perform the function of automatic switching to backup power supply

    該單元是特別針對400v饋線備自投而設計的，它具有測量母線的電壓、電流、頻率、有功功率、無功功率、功率因數以及有功電度、無功電度等電參數的功能；當母線出現故障（過壓或欠壓）時，能夠完成兩組母線的自動投切，即備自投的功能。
  13. The dm642 uses a two - level cache - based architecture, level 1 cache is composed of a 16 - kbit l1p ( level 1 program cache ) and a 16 - kbit l1d ( level 1 data cache ), level 2 cache consists of 256 - kbit memory space that is shared between program and data space

    同時，研究了消除欠采樣噪聲演算法，並實現其處理功能。本文提出的系統設計方案，實現了高速、穩定、靈活的視頻採集處理播放平臺，可以高速而穩定的持久運行，達到了設計的要求。
  14. Under - frequency relay and equipment

    欠頻率繼電器及裝置
  15. Drought and water crisis are becoming an increasingly frequent occurrence in many countries due to climate change, poor water infrastructure and resource management, and loss of wetlands

    由於氣候轉變缺乏基建資源管理欠完善，加上濕地流失，導致全球旱災和水災的出現愈見頻繁。
  16. Based on the analysis of solving ambiguity, the thesis presents several algorithms for estimating doa and an algorithm for estimating frequency by using methods of subspace parameter estimation under sub - nyquist spatio - temporal sampling condition

    論文在分析解模糊思想的基礎上，給出空時欠采樣下運用子空間類參數估計方法估計波達方向的幾種演算法和一種頻率估計演算法，並從性能上進行了比較和分析。
  17. As a result, digital images usually suffer from aliasing due to undersampling, loss of high - frequency detail due to relative motion or out - of - focus. supperresolution involves up - conversion of the input sampling lattice as well as reducing or eliminating aliasing and bluring

    因此，通常數字圖像因欠采樣（ undersampling ）而引起的信號混疊，因低解析度傳感點擴散（ psf ： pointspreadfunction ）而造成的高頻部分、丟失，以及因相對運動或散焦造成的光學模糊等因素而受損。
  18. Study participants were shown videos of people laughing, being neutral and yawning, and researchers counted how many times the volunteers responded to their own ' contagious yawns, ' reported the online edition of bbc news

    據bbc新聞網報道，研究人員先讓實驗對象觀看人們大笑、正常狀態以及打呵欠的視頻，然後計算出志願者「傳染性打呵欠」的次數。
  19. Study participants were shown videos of people laughing, being neutral and yawning, and researchers counted how many times the volunteers responded to their own " contagious yawns, " reported the online edition of bbc news

    據bbc新聞網報道，研究人員先讓實驗對象觀看人們大笑正常狀態以及打呵欠的視頻，然後計算出志願者「傳染性打呵欠」的次數。
  20. On the basis of the former research works, we present the detecting method as follows : for the narrow band characteristic of the track signal we use under - sampling instead of nyquist sampling to reduce the sampling rate. as to the carrier frequency, the spectrum of the 18 - information frequency - shift track signal has two peaks, then the carrier frequency is the average of the two peak frequency, to um - 71 jointless track signal, it has only one peak, then the carrier frequency is the peak frequency

    針對移頻軌道信號的窄帶特性提出了使用欠采樣技術代替奈奎斯特采樣的方法，以降低信號的采樣頻率;國產18信息移頻軌道信號頻譜具有雙峰，雙峰頻率平均值就是信號的載頻頻率，而um - 71無絕緣軌道信號頻譜單峰，峰值頻率即為信號的載頻頻率。
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