轉換低速 的英文怎麼說

中文拼音 [zhuǎnhuàndīsù]
轉換低速 英文
downshifting
  • 轉 : 轉構詞成分。
  • 換 : 動詞1. （給人東西同時從他那裡取得別的東西） exchange; barter; trade 2. （變換; 更換） change 3. （兌換） exchange; cash
  • 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...
  • 轉換 : change; transform; convert; switch
  1. The direct convertor is fact, but with little accuracy.

    直接比較式轉換器速度高，但精度低。
  2. After analysing several kinds of light - weighting structures through ansys, hexagonal speculum structure is confirmed. in the aspect of the controling of speculum, the paper adopts the brushless dc motor which is partial assembled to drive the point speculum and the inductosyn as angle measuring component is selected, the ad2s80a the system is used to get directly angle and angular velocity. double closed - loop speed and position control is designed, as the pid control is the well - developed algorithm, which can achieve stable rotation and precise position control

    在指向反射鏡的擺動控制方面，採用低速性能好的分裝式直流力矩電機作為指向反射鏡的驅動電機，並採用感應同步器作為角度測量元件，運用軸角轉換器ad2s80a進行角度和速度的輸出，採用技術成熟的pid控制方案，進行速度和位置雙閉環控制，以實現指向反射鏡轉動速度的平穩性和位置的精確性。
  3. Driven by the requirements of an analog - to - digital converter ( adc ) with excellent performances, adcs have been made a rapid progress towards high speed, high resolution and low power dissipation

    為了適應各個應用領域對模數（ a / d ）轉換器越來越高的要求， a / d轉換器朝著高解析度、高速和低功耗等方向快速發展。
  4. And the most advantage of ofdm is that it can convert high - rate data stream into the low - rate and reduce data bandwidth so that multi - path - fading can be transformed into flat fading in wireless circumstance

    這種調制技術的最大的好處就是將高速的數據流，變換成并行的低速數據流，減小了數據帶寬，從而可將無線環境中的多徑衰落（頻率選擇性率落）轉換成平坦衰落。
  5. This dissertation focus on a innovation methods for inverter controlled hydraulic elevator system applying pressure accumulator as the " pressure - energy transformer ". the required power supply and running energy can be reduced remarkably when accumulators storing and releasing pressure oil. then the key items about hydraulic speed control system based on the ens 1 - 2 and other hydraulic elevator standards are investigated in detail

    本論文主要研究了採用蓄能器-液壓泵馬達構成的「壓力-能量轉換裝置」來儲存釋放變頻驅動液壓電梯系統的能量，從而降低液壓電梯裝機功率和運行能耗的新方案；在此基礎上，根據國內外液壓電梯的標準進行了與速度控制相關的關鍵項目測試，最後針對本課題研製的節能控制系統與當前市場上幾種典型的液壓電梯控制系統進行了能耗對比研究。
  6. There are five parts are as follows : in part one, the concept of switching function is introduced first to establish the nonlinear mathematical model of the induction motor variable frequency speed adjustment system which is fed by a sine pulse width modulated ( spwm ) inverter and takes the effect of the main magnetic circuit saturation into consideration, then the low frequency oscillation of the system is simulated according to the model. next, from the view point of energy conversion of the inverter - induction system, a criterion for the low frequency oscillation is proposed to determine whether the system is in low frequency oscillation which is judged by whether the interval of the negative current component of the inverter input current is more than 1 / fc ( fc is the carrier wave frequency of the inverter ) or not

    首先引入開關函數概念，建立了正弦脈寬調制（ spwm ）逆變器供電異步電動機，考慮主磁路飽和時的變頻調速系統整體數學模型，模擬系統的低頻振蕩；其次從逆變器-異步電動機系統能量轉換角度出發，提出通過檢測逆變器輸入電流中負電流的間隔時間是否大於1 / f _ c （ f _ c為逆變器載波頻率）來判定系統是否出現低頻振蕩；最後的實驗結果驗證了系統低頻振蕩建模和判據的實用性和正確性。
  7. The bottleneck of hybrid filter banks adc system is that it cannot sample directly higher radio frequency signal because of lower analog input bandwidth of its adc. in order to remove it, a kind of downsampler model based on nyquist and bandpass sampling theorem is presented, analyzed and proved in time and frequency domain, in addition a downsampler is designed according to the model. on the basis of hybrid filter banks adc system, a class of high speed hybrid filter banks adc system is proposed

    針對混合濾波器組adc系統因其adc模擬輸入帶寬低而不能對頻率較高的射頻模擬信號進行模/數轉換的瓶頸，作者提出了一種基於nyquist采樣定理和帶通采樣定理的抽取器數學模型，對該數學模型進行了時域、頻域的分析證明后，設計了一種基於該數學模型的sha抽取器，進而在混合濾波器組adc系統的基礎上，提出了高速混合濾波器組adc系統。
  8. During 1999, 74 trams had rotary controllers by electronic speed controllers incorporating deadmans handles and were completely rewired with lsf cabling and fitted with traction grade convertors

    在1999年，電車公司將74輛電車的舊式車速控制系統，改裝成配備無人操控裝置的電車電子速度控制器，並更換全新的低煙阻燃無毒電線及裝置牽引機車專用的電源轉換器。
  9. Motors are by dick kerr, metropolitan vickers and english electric, and controllers are by dick kerr, english electric and maley and taunton. during 1999, 74 trams had rotary controllers by electronic speed controllers incorporating deadmans handles and were completely rewired with lsf cabling and fitted with traction grade convertors

    在1999年，電車公司將74輛電車的舊式車速控制系統，改裝成配備無人操控裝置的電車電子速度控制器，並更換全新的低煙阻燃無毒電線及裝置牽引機車專用的電源轉換器。
  10. The technology not only reduces working procedure but avoids conversion errors caused by making transition model, and can ensure edm performance of the obtained electrode using the combination of puls

    該工藝不僅減少了工序，還避免了因翻制過渡模型帶來的轉換誤差，將脈沖電鑄和電弧摘要噴塗紫銅背村相結合製造電極，能保證電極的電加工性能，可以實現高效率、高精度和低成本的快速模具製造。
  11. The air - fuel ratio closed loop control adjusts the air - fuel ratio near the theoretical value by controlling the supplementary air of supplementary valve based on the signals of oxygen sensor, running speed and water temperature and which is necessary condition for three - way catalyst converter to work more efficiently

    空燃比閉環控制是根據氧傳感器、轉速和水溫信號，控制化油器后補氣閥補氣將空燃比控制在理論值附近，為三元催化轉換器高效工作準備必要條件，使其最大限度降低尾氣排放。
  12. Ainerican pngv ( the cooperation contract of ainerican government and auto industry circ1e ) p1an to deve1op three times fue1 efficiency of automobile at present, within 10 years. there are three major aspects of its study " first, raising the efficiency of fue1 changed into mechanical energy ; second, decreascing the vehic1e weight in order to reduce the requirement for the force of engine : thir ( 1, drawing back and uti1izing the 1oss energy of brake and s1ows down

    美國pngv （美國政府和汽車工業界的合作契約的簡稱）計劃十年內開發出三倍于目前燃料效率的汽車，其研究主要從三個方面著手，一是提高燃料轉換成機械能的效率，二是降低車重減少汽車對能量的要求，三是實現再生制動，將減速及制動過程損耗的能量回收利用。
  13. The theory of fdi holds that the developing host country can draw advanced technology and capital which its country lacks. utilizing international circulating resources can help our industry to stride across the bottleneck of the supply of the key element, to establish rapidly the industry which cannot be developed at the present, promote " the upgrading of the old industries of the host country, enhance the quality of the related industries " capital, transfer the comparatively inferior industry to the comparatively superior industry, to accelerate the u pgrading of the industrial structure. however, the effect of fdi on promoting the upgrading of the host country ' s industrial structure is decided by the height of the industrial development of the emigrating country, the industrial accepting ability of the host country and the industrial leading " ability formed by fdi ' s related effect

    外商直接投資理論認為通過引入外商直接投資，發展中東道國可以引入本國缺乏的先進技術和資本，利用國際流動資源幫助本國產業跨越原要素供給的瓶頸，迅速建立起現階段自身沒有能力發展的產業，推動東道國原產業的升級換代，提高東道國關聯產業存量資本和新形成資本的質量，使相對比較劣勢的產業向比較優勢的產業轉化，加速本國產業結構升級。但是外商直接投資促進東道國產業結構升級效應的高低則決定於產業轉移國的產業發展高度，東道國的產業接受能力和通過外商直接投資關聯效應形成產業帶動的能力。
  14. It has some advantages other than inorganic materials, such as quick response, large electro - optical coefficient, wide transparence, simple manufacture, low cost and easy for integration, etc. some pyridinium salts with " d - - a " structure have very excellent tpa and up - conversion fluorescence properties, so they are the possible candidates to be used to make tpa up - conversion dye lasers

    這類材料具有響應速度快、電光系數大、透光波段寬、制備簡單、成本低廉、易於集成等優點。 「 d - - a 」型的吡啶鹽系列染料具有非常優秀的雙光子吸收和激光上轉換性能，是雙光子上轉換激光器的候選材料。
  15. In the time - domain, based on the principle of random sampling of dso. two way ( " time amplifing in dual slope integral " and " time - voltage convert " ) are implemented to measure the time between the system triger and writing clock. thus random sampling interpolate can be done to measure repeated signal in high frequency with the a / d convert and controller which frequency are lower

    在時域，根據數字示波器隨機取樣原理，用兩種方法（雙斜率積分時間放大測量方法和時間? ?電壓轉換測量方法）測量數字示波器系統觸發和采樣寫時鐘間時間間隔，用低速a / d轉換器及控制器進行模?數轉換和控制，以此進行隨機取樣內插，從而實現了對高頻率重復信號的測量。
  16. The load - control apparatus adopted a single - chip microcomputer system, whose mcu was a kind of high - speed processor - ds80c320, whose a / d switched apparatus was max180, whose low - pass filter was max293, whose f / v transformed circuit was lm331, whose controlled silicon phase - shift touch - off circuit was tca785, and whose communicating interface of rs232 was max202. the watchdog of the mcu was max705 and the system used an on - off electrical source to supply power

    球磨機負荷控制儀採用了單片機系統， mcu採用ds80c320高速處理器，採用max180作為md轉換器，低通濾波器為max293 ， f v轉換電路利用lm331 ，可控硅移相觸發電路使用tca785 ， rs232通信介面晶元採用max202 ， mcu監控電路為max705 ，系統使用開關電源供電。
  17. I designed both hardware and software to develop the multi - channel analyzer, of which the key is the pc / 104 embedded computer. in a word, it has five traits as follows : ( 1 ) the key of apparatus is the pc / 104 embedded computer ; ( 2 ) on the hardware, we introduce the high - speed a / d conversion component - max191 to improve the mca ' s conversion speed and meet the demand on the spot ; ( 3 ) adopting high frequency module of electrical source to reduce its volume. ( 4 ) the mca consumes low power no more than 3. 9 watt

    以國土資源部項目為依託，以pc 104嵌入式微機為平臺，完成了小型、低功耗能譜採集系統，特點是： （ 1 ）以pc 104嵌入式微機為平臺，實現了採集系統微機化； （ 2 ）採用高速低功耗a d器件maxl91 ，與現有的mca相比，提高了轉換速度，降低了mca的功耗； （ 3 ）採用高頻模塊電源，減小了採集系統的體積； （ 4 ）整機功耗低，小於3 . 9w ； （ 5 ）儀器重量輕。
  18. The dissertation discusses about field multi - channel nuclear data collecting system based on mcu in detail. the data collecting system adopts mcu ( micro - control units ) at89c55 as controlling core, applying high speed and low power adcs ( analog - to - digital converters ) cmos chip max 191 and 320x240 matrix graphic lcd ( liquid crystal display )

    該系統在硬體上以單片機at89c55為控制核心，以高速低功耗的a d晶元max191作為多道脈沖幅度分析器的模數轉換器件，以320 240點陣圖形液晶顯示屏作為系統的顯示器，根據初步的性能測試，系統已經達到預期的設計目標。
  19. A low - speed input device that converts graphic and pictorial data into binary, numeric inputs for a digital computer

    一種低速輸入設備，它將圖形和圖象數據轉換成用於數字計算機的二進制數值輸入。
  20. Comparing with conventional nyquist converters, - converters greatly release the requirements for high performance of analog circuit and precisely matched components. additionally, these converters exploit the enhanced speed, circuit density and low cost of modern vlsi technologies. currentlly, - adcs have been widely used for audio a / d conversion

    - adc採用過采樣噪聲整形技術實現高精度模數轉換，和傳統的nyquist率模數轉換器相比，避免了對模擬電路性能指標和元器件匹配精度的較高要求，並可充分利用現代vlsi的高速、高集成度、低成本的優點，已成為音頻模數轉換的主要技術。
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